{"product_id":"speedgrow-75-x-75-x-65mm-cube-38-x-35mm-hole","title":"Speedgrow 75 x 75 x 65mm Cube 38 x 35mm Hole","description":"\u003ch1 data-section-id=\"lxe5c2\" data-start=\"0\" data-end=\"94\" class=\"PDq2pG_selectionAnchorContainer\"\u003e\n\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2\" data-end=\"94\"\u003eSpeedgrow 75 x 75 x 65mm Propagation Cube – 38 x 35mm Large Hole Earthwool Starter Block\u003c\/strong\u003e\u003c\/span\u003e\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp data-start=\"96\" data-end=\"325\"\u003eThe \u003cstrong data-start=\"100\" data-end=\"165\"\u003eSpeedgrow 75 x 75 x 65mm Propagation Cube with 38 x 35mm hole\u003c\/strong\u003e is a professional-grade Earthwool starter block designed for seedlings, rooted cuttings and young plants moving from propagation into the next stage of growth.\u003c\/p\u003e\n\u003cp data-start=\"327\" data-end=\"561\"\u003eManufactured by \u003cstrong data-start=\"343\" data-end=\"370\"\u003eAgra-Wool International\u003c\/strong\u003e, the Speedgrow range uses mineral fibres produced from basalt and bonded using \u003cstrong data-start=\"450\" data-end=\"470\"\u003eECOSE technology\u003c\/strong\u003e, an organic binder technology designed to create an open, root-friendly growing structure.\u003c\/p\u003e\n\u003cp data-start=\"563\" data-end=\"815\"\u003eThe generous \u003cstrong data-start=\"576\" data-end=\"619\"\u003e38mm diameter x 35mm deep planting hole\u003c\/strong\u003e is designed to accept larger propagation plugs, including compatible \u003cstrong data-start=\"689\" data-end=\"718\"\u003e38 x 35mm Speedgrow plugs\u003c\/strong\u003e, allowing young plants to be transplanted into a larger rooting volume with minimal disturbance.\u003c\/p\u003e\n\u003cp data-start=\"817\" data-end=\"1042\"\u003eWith a compact \u003cstrong data-start=\"832\" data-end=\"850\"\u003e75 x 75 x 65mm\u003c\/strong\u003e format, this cube provides considerably more root space than a propagation plug while remaining small enough for efficient nursery, hydroponic and controlled-environment growing applications.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1ma7m6t\" data-start=\"1044\" data-end=\"1059\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-start=\"1061\" data-end=\"1791\"\u003e\n\u003cli data-section-id=\"1o6kvrf\" data-start=\"1061\" data-end=\"1105\"\u003e\n\u003cstrong data-start=\"1063\" data-end=\"1081\"\u003e75 x 75 x 65mm\u003c\/strong\u003e propagation\/start block\u003c\/li\u003e\n\u003cli data-section-id=\"c1376l\" data-start=\"1106\" data-end=\"1148\"\u003eLarge \u003cstrong data-start=\"1114\" data-end=\"1148\"\u003e38mm diameter x 35mm deep hole\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"b1vosr\" data-start=\"1149\" data-end=\"1194\"\u003eManufactured by \u003cstrong data-start=\"1167\" data-end=\"1194\"\u003eAgra-Wool International\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"12azfsy\" data-start=\"1195\" data-end=\"1252\"\u003ePart of the \u003cstrong data-start=\"1209\" data-end=\"1232\"\u003eSpeedgrow Earthwool\u003c\/strong\u003e growing media range\u003c\/li\u003e\n\u003cli data-section-id=\"1cb3mbh\" data-start=\"1253\" data-end=\"1303\"\u003eMineral fibre substrate manufactured from basalt\u003c\/li\u003e\n\u003cli data-section-id=\"olqrh4\" data-start=\"1304\" data-end=\"1337\"\u003eECOSE organic binder technology\u003c\/li\u003e\n\u003cli data-section-id=\"1eu01zq\" data-start=\"1338\" data-end=\"1388\"\u003eOpen fibre structure encourages root development\u003c\/li\u003e\n\u003cli data-section-id=\"nzwba2\" data-start=\"1389\" data-end=\"1448\"\u003eExcellent balance between moisture retention and aeration\u003c\/li\u003e\n\u003cli data-section-id=\"18udh5p\" data-start=\"1449\" data-end=\"1503\"\u003eProvides additional rooting volume after propagation\u003c\/li\u003e\n\u003cli data-section-id=\"gnfk0z\" data-start=\"1504\" data-end=\"1548\"\u003eSuitable for seedlings and rooted cuttings\u003c\/li\u003e\n\u003cli data-section-id=\"1y12xpe\" data-start=\"1549\" data-end=\"1594\"\u003eCompatible with 38 x 35mm propagation plugs\u003c\/li\u003e\n\u003cli data-section-id=\"15uxz9u\" data-start=\"1595\" data-end=\"1640\"\u003eDesigned for controlled nutrient management\u003c\/li\u003e\n\u003cli data-section-id=\"mnsl3o\" data-start=\"1641\" data-end=\"1710\"\u003eSuitable for hydroponic and professional horticultural applications\u003c\/li\u003e\n\u003cli data-section-id=\"gmarqa\" data-start=\"1711\" data-end=\"1743\"\u003eLightweight and easy to handle\u003c\/li\u003e\n\u003cli data-section-id=\"jzr2zz\" data-start=\"1744\" data-end=\"1791\"\u003eCan progress into larger grow blocks or slabs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"i2hsux\" data-start=\"1793\" data-end=\"1838\"\u003eFrom Propagation Plug to Established Plant\u003c\/h2\u003e\n\u003cp data-start=\"1840\" data-end=\"2000\"\u003eOne of the primary purposes of the Speedgrow 75mm cube is to provide an intermediate rooting stage between a small propagation plug and a larger growing system.\u003c\/p\u003e\n\u003cp data-start=\"2002\" data-end=\"2027\"\u003eA typical progression is:\u003c\/p\u003e\n\u003cp data-start=\"2029\" data-end=\"2132\"\u003e\u003cstrong data-start=\"2029\" data-end=\"2132\"\u003eSeed or Cutting → Propagation Plug → 75mm Speedgrow Cube → Grow Block, Slab or Final Growing System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"2134\" data-end=\"2260\"\u003eOnce roots are established in a compatible propagation plug, the complete plug can be inserted into the \u003cstrong data-start=\"2238\" data-end=\"2259\"\u003e38 x 35mm opening\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2262\" data-end=\"2405\"\u003eThis means there is no need to remove the young plant from its existing propagation media and unnecessarily disturb its developing root system.\u003c\/p\u003e\n\u003cp data-start=\"2407\" data-end=\"2509\"\u003eRoots can instead continue growing outward from the original plug and into the larger Speedgrow block.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1kgptdw\" data-start=\"2511\" data-end=\"2543\"\u003eLarge 38 x 35mm Planting Hole\u003c\/h2\u003e\n\u003cp data-start=\"2545\" data-end=\"2600\"\u003eThis version features the \u003cstrong data-start=\"2571\" data-end=\"2599\"\u003elarge-hole configuration\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-section-id=\"9eqtt7\" data-start=\"2602\" data-end=\"2621\"\u003eHole Dimensions\u003c\/h3\u003e\n\u003cp data-start=\"2623\" data-end=\"2659\"\u003e\u003cstrong data-start=\"2623\" data-end=\"2636\"\u003eDiameter:\u003c\/strong\u003e 38mm\u003cbr data-start=\"2641\" data-end=\"2644\"\u003e\u003cstrong data-start=\"2644\" data-end=\"2654\"\u003eDepth:\u003c\/strong\u003e 35mm\u003c\/p\u003e\n\u003cp data-start=\"2661\" data-end=\"2809\"\u003eSpeedgrow also manufactures smaller-hole blocks, so checking the hole specification is important when matching starter cubes with propagation plugs.\u003c\/p\u003e\n\u003cp data-start=\"2811\" data-end=\"2930\"\u003eThe \u003cstrong data-start=\"2815\" data-end=\"2836\"\u003e38 x 35mm version\u003c\/strong\u003e is particularly useful when transplanting compatible larger propagation plugs into the block.\u003c\/p\u003e\n\u003ch2 data-section-id=\"mms0bh\" data-start=\"2932\" data-end=\"2958\"\u003eEarthwool Growing Media\u003c\/h2\u003e\n\u003cp data-start=\"2960\" data-end=\"3097\"\u003eSpeedgrow blocks are manufactured from \u003cstrong data-start=\"2999\" data-end=\"3026\"\u003eEarthwool mineral fibre\u003c\/strong\u003e, produced using basalt-based mineral material formed into fine fibres.\u003c\/p\u003e\n\u003cp data-start=\"3099\" data-end=\"3149\"\u003eThe resulting structure provides a combination of:\u003c\/p\u003e\n\u003cp data-start=\"3151\" data-end=\"3202\"\u003e\u003cstrong data-start=\"3151\" data-end=\"3202\"\u003eWater retention + drainage + root-zone aeration\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"3204\" data-end=\"3361\"\u003eUnlike a conventional potting mix, the mineral substrate itself gives the grower a high degree of control over the water and nutrients supplied to the plant.\u003c\/p\u003e\n\u003cp data-start=\"3363\" data-end=\"3479\"\u003eThis makes mineral fibre blocks particularly useful for hydroponic cultivation and other controlled feeding systems.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1hq7csq\" data-start=\"3481\" data-end=\"3519\"\u003eOpen Structure for Root Development\u003c\/h2\u003e\n\u003cp data-start=\"3521\" data-end=\"3654\"\u003eA successful propagation substrate needs to hold sufficient moisture without eliminating the air spaces required by developing roots.\u003c\/p\u003e\n\u003cp data-start=\"3656\" data-end=\"3717\"\u003eSpeedgrow's open fibre structure is designed to provide both.\u003c\/p\u003e\n\u003cp data-start=\"3719\" data-end=\"3895\"\u003eAs roots move through the block, the mineral fibres provide minimal physical resistance while retaining moisture and maintaining air-filled pore space throughout the root zone.\u003c\/p\u003e\n\u003cp data-start=\"3897\" data-end=\"4024\"\u003eThis makes the cube suitable for developing a dense root system before the plant progresses into its final growing environment.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1dcae0a\" data-start=\"4026\" data-end=\"4052\"\u003eECOSE Binder Technology\u003c\/h2\u003e\n\u003cp data-start=\"4054\" data-end=\"4148\"\u003eSpeedgrow Earthwool uses \u003cstrong data-start=\"4079\" data-end=\"4106\"\u003eECOSE binder technology\u003c\/strong\u003e rather than a conventional binder system.\u003c\/p\u003e\n\u003cp data-start=\"4150\" data-end=\"4302\"\u003eThe binder is based predominantly on naturally derived organic raw materials and holds the mineral fibres together to create a stable propagation block.\u003c\/p\u003e\n\u003cp data-start=\"4304\" data-end=\"4387\"\u003eThis is one of the distinguishing characteristics of the Speedgrow Earthwool range.\u003c\/p\u003e\n\u003ch2 data-section-id=\"jj9qjp\" data-start=\"4389\" data-end=\"4423\"\u003eDesigned for Controlled Feeding\u003c\/h2\u003e\n\u003cp data-start=\"4425\" data-end=\"4538\"\u003eMineral fibre growing media allows growers to control what reaches the root zone through the irrigation solution.\u003c\/p\u003e\n\u003cp data-start=\"4540\" data-end=\"4574\"\u003eThis can make it easier to manage:\u003c\/p\u003e\n\u003cul data-start=\"4576\" data-end=\"4688\"\u003e\n\u003cli data-section-id=\"1mf7t8y\" data-start=\"4576\" data-end=\"4600\"\u003eNutrient concentration\u003c\/li\u003e\n\u003cli data-section-id=\"177qsb7\" data-start=\"4601\" data-end=\"4621\"\u003eRoot-zone moisture\u003c\/li\u003e\n\u003cli data-section-id=\"fqp89i\" data-start=\"4622\" data-end=\"4644\"\u003eIrrigation frequency\u003c\/li\u003e\n\u003cli data-section-id=\"yhmt8w\" data-start=\"4645\" data-end=\"4649\"\u003epH\u003c\/li\u003e\n\u003cli data-section-id=\"yhmtvy\" data-start=\"4650\" data-end=\"4654\"\u003eEC\u003c\/li\u003e\n\u003cli data-section-id=\"8o6wn5\" data-start=\"4655\" data-end=\"4665\"\u003eDry-back\u003c\/li\u003e\n\u003cli data-section-id=\"6evjhh\" data-start=\"4666\" data-end=\"4688\"\u003eFertigation strategy\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"4690\" data-end=\"4805\"\u003eThe block therefore works particularly well in cultivation systems where precise root-zone management is important.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1a3ueyz\" data-start=\"4807\" data-end=\"4824\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv class=\"group TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"4826\" data-end=\"5521\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"4826\" data-end=\"4853\"\u003e\n\u003ctr data-start=\"4826\" data-end=\"4853\"\u003e\n\u003cth data-start=\"4826\" data-end=\"4842\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eSpecification\u003c\/th\u003e\n\u003cth data-start=\"4842\" data-end=\"4853\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"4864\" data-end=\"5521\"\u003e\n\u003ctr data-start=\"4864\" data-end=\"4889\"\u003e\n\u003ctd data-start=\"4864\" data-end=\"4876\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"4866\" data-end=\"4875\"\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"4876\" data-end=\"4889\"\u003eSpeedgrow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4890\" data-end=\"4936\"\u003e\n\u003ctd data-start=\"4890\" data-end=\"4909\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"4892\" data-end=\"4908\"\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"4909\" data-end=\"4936\" data-col-size=\"sm\"\u003eAgra-Wool International\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4937\" data-end=\"4986\"\u003e\n\u003ctd data-start=\"4937\" data-end=\"4956\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"4939\" data-end=\"4955\"\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"4956\" data-end=\"4986\" data-col-size=\"sm\"\u003ePropagation \/ Starter Cube\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4987\" data-end=\"5035\"\u003e\n\u003ctd data-start=\"4987\" data-end=\"5008\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"4989\" data-end=\"5007\"\u003eGrowing Medium\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"5008\" data-end=\"5035\" data-col-size=\"sm\"\u003eEarthwool Mineral Fibre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"5036\" data-end=\"5081\"\u003e\n\u003ctd data-start=\"5036\" data-end=\"5059\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"5038\" data-end=\"5058\"\u003eBlock Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"5059\" data-end=\"5081\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"5061\" data-end=\"5079\"\u003e75 x 75 x 65mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"5082\" data-end=\"5114\"\u003e\n\u003ctd data-start=\"5082\" data-end=\"5102\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"5084\" data-end=\"5101\"\u003eHole Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"5102\" data-end=\"5114\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"5104\" data-end=\"5112\"\u003e38mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"5115\" data-end=\"5144\"\u003e\n\u003ctd data-start=\"5115\" data-end=\"5132\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"5117\" data-end=\"5131\"\u003eHole Depth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"5132\" data-end=\"5144\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"5134\" data-end=\"5142\"\u003e35mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"5145\" data-end=\"5170\"\u003e\n\u003ctd data-start=\"5145\" data-end=\"5161\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"5147\" data-end=\"5160\"\u003eHole Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"5161\" data-end=\"5170\" data-col-size=\"sm\"\u003eLarge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"5171\" data-end=\"5204\"\u003e\n\u003ctd data-start=\"5171\" data-end=\"5195\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"5173\" data-end=\"5194\"\u003eBinder Technology\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"5195\" data-end=\"5204\" data-col-size=\"sm\"\u003eECOSE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"5205\" data-end=\"5263\"\u003e\n\u003ctd data-start=\"5205\" data-end=\"5225\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"5207\" data-end=\"5224\"\u003eBase Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"5225\" data-end=\"5263\" data-col-size=\"sm\"\u003eMineral fibre produced from basalt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"5264\" data-end=\"5318\"\u003e\n\u003ctd data-start=\"5264\" data-end=\"5290\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"5266\" data-end=\"5289\"\u003eTypical Application\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"5290\" data-end=\"5318\"\u003ePropagation \/ Growing On\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"5319\" data-end=\"5369\"\u003e\n\u003ctd data-start=\"5319\" data-end=\"5338\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"5321\" data-end=\"5337\"\u003eSuitable For\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"5338\" data-end=\"5369\" data-col-size=\"sm\"\u003eSeedlings \u0026amp; Rooted Cuttings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"5370\" data-end=\"5436\"\u003e\n\u003ctd data-start=\"5370\" data-end=\"5399\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"5372\" data-end=\"5398\"\u003eCompatible Plug Format\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"5399\" data-end=\"5436\" data-col-size=\"sm\"\u003e38 x 35mm class propagation plugs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"5437\" data-end=\"5474\"\u003e\n\u003ctd data-start=\"5437\" data-end=\"5467\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"5439\" data-end=\"5466\"\u003eApprox. Dry Unit Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"5467\" data-end=\"5474\"\u003e30g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"5475\" data-end=\"5521\"\u003e\n\u003ctd data-start=\"5475\" data-end=\"5508\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"5477\" data-end=\"5507\"\u003eCommercial Carton Quantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"5508\" data-end=\"5521\" data-col-size=\"sm\"\u003e224 cubes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 data-section-id=\"1ravkm9\" data-start=\"5523\" data-end=\"5569\"\u003eHow to Use Speedgrow 75mm Propagation Cubes\u003c\/h2\u003e\n\u003ch3 data-section-id=\"1ebe1hs\" data-start=\"5571\" data-end=\"5594\"\u003e1. Prepare the Cube\u003c\/h3\u003e\n\u003cp data-start=\"5596\" data-end=\"5638\"\u003eWet the block evenly before transplanting.\u003c\/p\u003e\n\u003cp data-start=\"5640\" data-end=\"5753\"\u003eThe aim is to achieve consistent moisture throughout the cube rather than leaving dry areas within the substrate.\u003c\/p\u003e\n\u003ch3 data-section-id=\"g3emvw\" data-start=\"5755\" data-end=\"5789\"\u003e2. Insert the Propagation Plug\u003c\/h3\u003e\n\u003cp data-start=\"5791\" data-end=\"5858\"\u003ePlace the established propagation plug into the \u003cstrong data-start=\"5839\" data-end=\"5857\"\u003e38 x 35mm hole\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"5860\" data-end=\"5941\"\u003eThe plug should sit securely without being compressed or forced into the opening.\u003c\/p\u003e\n\u003ch3 data-section-id=\"r4hq43\" data-start=\"5943\" data-end=\"5974\"\u003e3. Allow Roots to Establish\u003c\/h3\u003e\n\u003cp data-start=\"5976\" data-end=\"6112\"\u003eMaintain appropriate moisture and environmental conditions while the roots expand from the original plug into the surrounding Earthwool.\u003c\/p\u003e\n\u003cp data-start=\"6114\" data-end=\"6251\"\u003eAvoid repeatedly saturating the block simply because the upper surface appears dry. Root-zone moisture should guide irrigation decisions.\u003c\/p\u003e\n\u003ch3 data-section-id=\"177i8lv\" data-start=\"6253\" data-end=\"6284\"\u003e4. Begin Controlled Feeding\u003c\/h3\u003e\n\u003cp data-start=\"6286\" data-end=\"6394\"\u003eIntroduce an appropriate nutrient program according to crop requirements and the stage of plant development.\u003c\/p\u003e\n\u003cp data-start=\"6396\" data-end=\"6495\"\u003eMonitor nutrient strength and pH according to the requirements of your crop and cultivation method.\u003c\/p\u003e\n\u003ch3 data-section-id=\"emf00h\" data-start=\"6497\" data-end=\"6525\"\u003e5. Transplant or Grow On\u003c\/h3\u003e\n\u003cp data-start=\"6527\" data-end=\"6635\"\u003eOnce the cube has developed a strong root system, it can be moved into the next stage of the growing system.\u003c\/p\u003e\n\u003cp data-start=\"6637\" data-end=\"6678\"\u003eDepending on the setup, this may include:\u003c\/p\u003e\n\u003cul data-start=\"6680\" data-end=\"6845\"\u003e\n\u003cli data-section-id=\"1vsxsm2\" data-start=\"6680\" data-end=\"6710\"\u003eLarger Speedgrow grow blocks\u003c\/li\u003e\n\u003cli data-section-id=\"1grn3jo\" data-start=\"6711\" data-end=\"6729\"\u003eHydroponic slabs\u003c\/li\u003e\n\u003cli data-section-id=\"1g32617\" data-start=\"6730\" data-end=\"6755\"\u003eDrip irrigation systems\u003c\/li\u003e\n\u003cli data-section-id=\"59ym7f\" data-start=\"6756\" data-end=\"6781\"\u003eFlood and drain systems\u003c\/li\u003e\n\u003cli data-section-id=\"ewgpgz\" data-start=\"6782\" data-end=\"6801\"\u003eLarger containers\u003c\/li\u003e\n\u003cli data-section-id=\"iwnp74\" data-start=\"6802\" data-end=\"6845\"\u003eOther compatible hydroponic growing media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"1wzu0xa\" data-start=\"6847\" data-end=\"6882\"\u003eIdeal for Hydroponic Propagation\u003c\/h2\u003e\n\u003cp data-start=\"6884\" data-end=\"7025\"\u003eThe 75mm Speedgrow cube is particularly useful for growers who want more root volume before placing a plant into its final hydroponic system.\u003c\/p\u003e\n\u003cp data-start=\"7027\" data-end=\"7052\"\u003eApplications can include:\u003c\/p\u003e\n\u003cul data-start=\"7054\" data-end=\"7277\"\u003e\n\u003cli data-section-id=\"1xnrrct\" data-start=\"7054\" data-end=\"7078\"\u003eHydroponic propagation\u003c\/li\u003e\n\u003cli data-section-id=\"15n7ckd\" data-start=\"7079\" data-end=\"7100\"\u003eIndoor horticulture\u003c\/li\u003e\n\u003cli data-section-id=\"1y3fntd\" data-start=\"7101\" data-end=\"7125\"\u003eGreenhouse propagation\u003c\/li\u003e\n\u003cli data-section-id=\"i65jz1\" data-start=\"7126\" data-end=\"7143\"\u003eDrip irrigation\u003c\/li\u003e\n\u003cli data-section-id=\"qxzwwu\" data-start=\"7144\" data-end=\"7157\"\u003eFertigation\u003c\/li\u003e\n\u003cli data-section-id=\"1f78lrz\" data-start=\"7158\" data-end=\"7178\"\u003eNursery production\u003c\/li\u003e\n\u003cli data-section-id=\"8hy1ni\" data-start=\"7179\" data-end=\"7203\"\u003eSeedling establishment\u003c\/li\u003e\n\u003cli data-section-id=\"nsudt6\" data-start=\"7204\" data-end=\"7221\"\u003eRooted cuttings\u003c\/li\u003e\n\u003cli data-section-id=\"1uxyynj\" data-start=\"7222\" data-end=\"7248\"\u003eVegetative establishment\u003c\/li\u003e\n\u003cli data-section-id=\"195w7ig\" data-start=\"7249\" data-end=\"7277\"\u003eMineral fibre slab systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"1boj1dw\" data-start=\"7279\" data-end=\"7317\"\u003e75mm Cube vs Small Propagation Plug\u003c\/h2\u003e\n\u003cp data-start=\"7319\" data-end=\"7457\"\u003eA small propagation plug is ideal for germination and initial rooting, but its limited volume eventually restricts further root expansion.\u003c\/p\u003e\n\u003cp data-start=\"7459\" data-end=\"7510\"\u003eThe \u003cstrong data-start=\"7463\" data-end=\"7509\"\u003e75mm Speedgrow cube provides the next step\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"7512\" data-end=\"7648\"\u003eThe young plant remains inside its original plug while the surrounding block provides substantially more substrate for root development.\u003c\/p\u003e\n\u003cp data-start=\"7650\" data-end=\"7798\"\u003eThis staged approach allows growers to use space efficiently during early propagation before increasing the root-zone volume as each plant develops.\u003c\/p\u003e\n\u003ch2 data-section-id=\"9fiwir\" data-start=\"7800\" data-end=\"7833\"\u003eWhy Choose the 38 x 35mm Hole?\u003c\/h2\u003e\n\u003cp data-start=\"7835\" data-end=\"7937\"\u003eThe larger hole is particularly useful when your propagation system already uses \u003cstrong data-start=\"7916\" data-end=\"7936\"\u003e38mm-class plugs\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"7939\" data-end=\"8106\"\u003eInstead of attempting to fit a larger plug into a small planting hole, the appropriately sized opening allows the propagation plug to transfer directly into the block.\u003c\/p\u003e\n\u003cp data-start=\"8108\" data-end=\"8244\"\u003eFor growers standardising a propagation system, matching plug and starter-block sizes can make transplanting faster and more consistent.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1o0xw1b\" data-start=\"8246\" data-end=\"8288\"\u003eWhy Choose Speedgrow Propagation Cubes?\u003c\/h2\u003e\n\u003cp data-start=\"8290\" data-end=\"8409\"\u003eSpeedgrow combines the control associated with mineral fibre cultivation with a modern Earthwool manufacturing process.\u003c\/p\u003e\n\u003cp data-start=\"8411\" data-end=\"8630\"\u003eThe \u003cstrong data-start=\"8415\" data-end=\"8450\"\u003e75 x 75 x 65mm large-hole block\u003c\/strong\u003e is particularly useful as an intermediate stage because it gives developing plants additional rooting volume without immediately moving them into a large block or final container.\u003c\/p\u003e\n\u003cp data-start=\"8632\" data-end=\"8781\"\u003eFor growers already using Speedgrow 38mm propagation plugs, the matching \u003cstrong data-start=\"8705\" data-end=\"8723\"\u003e38 x 35mm hole\u003c\/strong\u003e also creates a straightforward plug-to-block progression.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1r8frcv\" data-start=\"8783\" data-end=\"8812\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3 data-section-id=\"1sz5bsh\" data-start=\"8814\" data-end=\"8851\"\u003eWhat size is this Speedgrow cube?\u003c\/h3\u003e\n\u003cp data-start=\"8853\" data-end=\"8910\"\u003eThe block measures \u003cstrong data-start=\"8872\" data-end=\"8909\"\u003e75mm long x 75mm wide x 65mm high\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-section-id=\"l7gicc\" data-start=\"8912\" data-end=\"8947\"\u003eWhat size is the planting hole?\u003c\/h3\u003e\n\u003cp data-start=\"8949\" data-end=\"9029\"\u003eThe large planting hole measures approximately \u003cstrong data-start=\"8996\" data-end=\"9028\"\u003e38mm in diameter x 35mm deep\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-section-id=\"ieeb6z\" data-start=\"9031\" data-end=\"9052\"\u003eIs this rockwool?\u003c\/h3\u003e\n\u003cp data-start=\"9054\" data-end=\"9322\"\u003eSpeedgrow describes its growing medium as \u003cstrong data-start=\"9096\" data-end=\"9109\"\u003eEarthwool\u003c\/strong\u003e, a mineral fibre substrate produced using basalt-based mineral material and ECOSE binder technology. It performs the same general horticultural role commonly associated with stone wool or rockwool growing blocks.\u003c\/p\u003e\n\u003ch3 data-section-id=\"3ebrdh\" data-start=\"9324\" data-end=\"9355\"\u003eWho manufactures Speedgrow?\u003c\/h3\u003e\n\u003cp data-start=\"9357\" data-end=\"9414\"\u003eSpeedgrow is manufactured by \u003cstrong data-start=\"9386\" data-end=\"9413\"\u003eAgra-Wool International\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1txo6f9\" data-start=\"9416\" data-end=\"9454\"\u003eWhat fits into the 38 x 35mm hole?\u003c\/h3\u003e\n\u003cp data-start=\"9456\" data-end=\"9559\"\u003eIt is designed for compatible larger propagation plugs, including \u003cstrong data-start=\"9522\" data-end=\"9558\"\u003e38 x 35mm Speedgrow plug formats\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-section-id=\"cv8f9u\" data-start=\"9561\" data-end=\"9604\"\u003eCan I put a rooted cutting in the cube?\u003c\/h3\u003e\n\u003cp data-start=\"9606\" data-end=\"9757\"\u003eYes. The block is suitable for young rooted plants and cuttings, particularly where the cutting has first established in a compatible propagation plug.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1pjbb31\" data-start=\"9759\" data-end=\"9785\"\u003eCan seedlings be used?\u003c\/h3\u003e\n\u003cp data-start=\"9787\" data-end=\"9904\"\u003eYes. Seedlings established in a compatible plug can be transplanted into the 75mm block for further root development.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1qv4l74\" data-start=\"9906\" data-end=\"9931\"\u003eIs the cube reusable?\u003c\/h3\u003e\n\u003cp data-start=\"9933\" data-end=\"10122\"\u003eMineral fibre blocks are primarily intended as growing media for an individual crop cycle. Whether reuse is practical depends on root contamination, sanitation and the intended application.\u003c\/p\u003e\n\u003ch3 data-section-id=\"dt768\" data-start=\"10124\" data-end=\"10162\"\u003eCan I use the cube in hydroponics?\u003c\/h3\u003e\n\u003cp data-start=\"10164\" data-end=\"10284\"\u003eYes. Controlled hydroponic cultivation is one of the primary applications for this style of mineral fibre growing block.\u003c\/p\u003e\n\u003ch3 data-section-id=\"f06olt\" data-start=\"10286\" data-end=\"10316\"\u003eDoes it contain nutrients?\u003c\/h3\u003e\n\u003cp data-start=\"10318\" data-end=\"10516\"\u003eTreat the block as a \u003cstrong data-start=\"10339\" data-end=\"10413\"\u003econtrolled growing substrate rather than a complete fertiliser program\u003c\/strong\u003e. Once plants require feeding, provide an appropriate nutrient solution according to crop requirements.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1y1j6kx\" data-start=\"10518\" data-end=\"10560\"\u003eCan I place it on a larger grow block?\u003c\/h3\u003e\n\u003cp data-start=\"10562\" data-end=\"10685\"\u003eYes. Once sufficiently rooted, the starter block can be incorporated into a larger compatible mineral fibre growing system.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1bsl5ro\" data-start=\"10687\" data-end=\"10716\"\u003eCan it be used on a slab?\u003c\/h3\u003e\n\u003cp data-start=\"10718\" data-end=\"10868\"\u003eYes. Starter blocks of this type are commonly used as an intermediate propagation stage before plants are established onto larger mineral fibre slabs.\u003c\/p\u003e\n\u003ch3 data-section-id=\"guxrpm\" data-start=\"10870\" data-end=\"10932\"\u003eShould I remove the propagation plug before transplanting?\u003c\/h3\u003e\n\u003cp data-start=\"10934\" data-end=\"11116\"\u003eNo. A major advantage of using compatible plugs and starter blocks is that the \u003cstrong data-start=\"11013\" data-end=\"11080\"\u003eentire rooted propagation plug can be transferred into the cube\u003c\/strong\u003e, helping minimise root disturbance.\u003c\/p\u003e\n\u003ch1 data-section-id=\"lxe5c2\" data-start=\"0\" data-end=\"94\" class=\"PDq2pG_selectionAnchorContainer\"\u003e\n\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2\" data-end=\"94\"\u003eSpeedgrow 75 x 75 x 65mm Propagation Cube – 38 x 35mm Large Hole Earthwool Starter Block\u003c\/strong\u003e\u003c\/span\u003e\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp data-start=\"96\" data-end=\"325\"\u003eThe \u003cstrong data-start=\"100\" data-end=\"165\"\u003eSpeedgrow 75 x 75 x 65mm Propagation Cube with 38 x 35mm hole\u003c\/strong\u003e is a professional-grade Earthwool starter block designed for seedlings, rooted cuttings and young plants moving from propagation into the next stage of growth.\u003c\/p\u003e\n\u003cp data-start=\"327\" data-end=\"561\"\u003eManufactured by \u003cstrong data-start=\"343\" data-end=\"370\"\u003eAgra-Wool International\u003c\/strong\u003e, the Speedgrow range uses mineral fibres produced from basalt and bonded using \u003cstrong data-start=\"450\" data-end=\"470\"\u003eECOSE technology\u003c\/strong\u003e, an organic binder technology designed to create an open, root-friendly growing structure.\u003c\/p\u003e\n\u003cp data-start=\"563\" data-end=\"815\"\u003eThe generous \u003cstrong data-start=\"576\" data-end=\"619\"\u003e38mm diameter x 35mm deep planting hole\u003c\/strong\u003e is designed to accept larger propagation plugs, including compatible \u003cstrong data-start=\"689\" data-end=\"718\"\u003e38 x 35mm Speedgrow plugs\u003c\/strong\u003e, allowing young plants to be transplanted into a larger rooting volume with minimal disturbance.\u003c\/p\u003e\n\u003cp data-start=\"817\" data-end=\"1042\"\u003eWith a compact \u003cstrong data-start=\"832\" data-end=\"850\"\u003e75 x 75 x 65mm\u003c\/strong\u003e format, this cube provides considerably more root space than a propagation plug while remaining small enough for efficient nursery, hydroponic and controlled-environment growing applications.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1ma7m6t\" data-start=\"1044\" data-end=\"1059\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-start=\"1061\" data-end=\"1791\"\u003e\n\u003cli data-section-id=\"1o6kvrf\" data-start=\"1061\" data-end=\"1105\"\u003e\n\u003cstrong data-start=\"1063\" data-end=\"1081\"\u003e75 x 75 x 65mm\u003c\/strong\u003e propagation\/start block\u003c\/li\u003e\n\u003cli data-section-id=\"c1376l\" data-start=\"1106\" data-end=\"1148\"\u003eLarge \u003cstrong data-start=\"1114\" data-end=\"1148\"\u003e38mm diameter x 35mm deep hole\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"b1vosr\" data-start=\"1149\" data-end=\"1194\"\u003eManufactured by \u003cstrong data-start=\"1167\" data-end=\"1194\"\u003eAgra-Wool International\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"12azfsy\" data-start=\"1195\" data-end=\"1252\"\u003ePart of the \u003cstrong data-start=\"1209\" data-end=\"1232\"\u003eSpeedgrow Earthwool\u003c\/strong\u003e growing media range\u003c\/li\u003e\n\u003cli data-section-id=\"1cb3mbh\" data-start=\"1253\" data-end=\"1303\"\u003eMineral fibre substrate manufactured from basalt\u003c\/li\u003e\n\u003cli data-section-id=\"olqrh4\" data-start=\"1304\" data-end=\"1337\"\u003eECOSE organic binder technology\u003c\/li\u003e\n\u003cli data-section-id=\"1eu01zq\" data-start=\"1338\" data-end=\"1388\"\u003eOpen fibre structure encourages root development\u003c\/li\u003e\n\u003cli data-section-id=\"nzwba2\" data-start=\"1389\" data-end=\"1448\"\u003eExcellent balance between moisture retention and aeration\u003c\/li\u003e\n\u003cli data-section-id=\"18udh5p\" data-start=\"1449\" data-end=\"1503\"\u003eProvides additional rooting volume after propagation\u003c\/li\u003e\n\u003cli data-section-id=\"gnfk0z\" data-start=\"1504\" data-end=\"1548\"\u003eSuitable for seedlings and rooted cuttings\u003c\/li\u003e\n\u003cli data-section-id=\"1y12xpe\" data-start=\"1549\" data-end=\"1594\"\u003eCompatible with 38 x 35mm propagation plugs\u003c\/li\u003e\n\u003cli data-section-id=\"15uxz9u\" data-start=\"1595\" data-end=\"1640\"\u003eDesigned for controlled nutrient management\u003c\/li\u003e\n\u003cli data-section-id=\"mnsl3o\" data-start=\"1641\" data-end=\"1710\"\u003eSuitable for hydroponic and professional horticultural applications\u003c\/li\u003e\n\u003cli data-section-id=\"gmarqa\" data-start=\"1711\" data-end=\"1743\"\u003eLightweight and easy to handle\u003c\/li\u003e\n\u003cli data-section-id=\"jzr2zz\" data-start=\"1744\" data-end=\"1791\"\u003eCan progress into larger grow blocks or slabs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"i2hsux\" data-start=\"1793\" data-end=\"1838\"\u003eFrom Propagation Plug to Established Plant\u003c\/h2\u003e\n\u003cp data-start=\"1840\" data-end=\"2000\"\u003eOne of the primary purposes of the Speedgrow 75mm cube is to provide an intermediate rooting stage between a small propagation plug and a larger growing system.\u003c\/p\u003e\n\u003cp data-start=\"2002\" data-end=\"2027\"\u003eA typical progression is:\u003c\/p\u003e\n\u003cp data-start=\"2029\" data-end=\"2132\"\u003e\u003cstrong data-start=\"2029\" data-end=\"2132\"\u003eSeed or Cutting → Propagation Plug → 75mm Speedgrow Cube → Grow Block, Slab or Final Growing System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"2134\" data-end=\"2260\"\u003eOnce roots are established in a compatible propagation plug, the complete plug can be inserted into the \u003cstrong data-start=\"2238\" data-end=\"2259\"\u003e38 x 35mm opening\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2262\" data-end=\"2405\"\u003eThis means there is no need to remove the young plant from its existing propagation media and unnecessarily disturb its developing root system.\u003c\/p\u003e\n\u003cp data-start=\"2407\" data-end=\"2509\"\u003eRoots can instead continue growing outward from the original plug and into the larger Speedgrow block.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1kgptdw\" data-start=\"2511\" data-end=\"2543\"\u003eLarge 38 x 35mm Planting Hole\u003c\/h2\u003e\n\u003cp data-start=\"2545\" data-end=\"2600\"\u003eThis version features the \u003cstrong data-start=\"2571\" data-end=\"2599\"\u003elarge-hole configuration\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-section-id=\"9eqtt7\" data-start=\"2602\" data-end=\"2621\"\u003eHole Dimensions\u003c\/h3\u003e\n\u003cp data-start=\"2623\" data-end=\"2659\"\u003e\u003cstrong data-start=\"2623\" data-end=\"2636\"\u003eDiameter:\u003c\/strong\u003e 38mm\u003cbr data-start=\"2641\" data-end=\"2644\"\u003e\u003cstrong data-start=\"2644\" data-end=\"2654\"\u003eDepth:\u003c\/strong\u003e 35mm\u003c\/p\u003e\n\u003cp data-start=\"2661\" data-end=\"2809\"\u003eSpeedgrow also manufactures smaller-hole blocks, so checking the hole specification is important when matching starter cubes with propagation plugs.\u003c\/p\u003e\n\u003cp data-start=\"2811\" data-end=\"2930\"\u003eThe \u003cstrong data-start=\"2815\" data-end=\"2836\"\u003e38 x 35mm version\u003c\/strong\u003e is particularly useful when transplanting compatible larger propagation plugs into the block.\u003c\/p\u003e\n\u003ch2 data-section-id=\"mms0bh\" data-start=\"2932\" data-end=\"2958\"\u003eEarthwool Growing Media\u003c\/h2\u003e\n\u003cp data-start=\"2960\" data-end=\"3097\"\u003eSpeedgrow blocks are manufactured from \u003cstrong data-start=\"2999\" data-end=\"3026\"\u003eEarthwool mineral fibre\u003c\/strong\u003e, produced using basalt-based mineral material formed into fine fibres.\u003c\/p\u003e\n\u003cp data-start=\"3099\" data-end=\"3149\"\u003eThe resulting structure provides a combination of:\u003c\/p\u003e\n\u003cp data-start=\"3151\" data-end=\"3202\"\u003e\u003cstrong data-start=\"3151\" data-end=\"3202\"\u003eWater retention + drainage + root-zone aeration\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"3204\" data-end=\"3361\"\u003eUnlike a conventional potting mix, the mineral substrate itself gives the grower a high degree of control over the water and nutrients supplied to the plant.\u003c\/p\u003e\n\u003cp data-start=\"3363\" data-end=\"3479\"\u003eThis makes mineral fibre blocks particularly useful for hydroponic cultivation and other controlled feeding systems.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1hq7csq\" data-start=\"3481\" data-end=\"3519\"\u003eOpen Structure for Root Development\u003c\/h2\u003e\n\u003cp data-start=\"3521\" data-end=\"3654\"\u003eA successful propagation substrate needs to hold sufficient moisture without eliminating the air spaces required by developing roots.\u003c\/p\u003e\n\u003cp data-start=\"3656\" data-end=\"3717\"\u003eSpeedgrow's open fibre structure is designed to provide both.\u003c\/p\u003e\n\u003cp data-start=\"3719\" data-end=\"3895\"\u003eAs roots move through the block, the mineral fibres provide minimal physical resistance while retaining moisture and maintaining air-filled pore space throughout the root zone.\u003c\/p\u003e\n\u003cp data-start=\"3897\" data-end=\"4024\"\u003eThis makes the cube suitable for developing a dense root system before the plant progresses into its final growing environment.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1dcae0a\" data-start=\"4026\" data-end=\"4052\"\u003eECOSE Binder Technology\u003c\/h2\u003e\n\u003cp data-start=\"4054\" data-end=\"4148\"\u003eSpeedgrow Earthwool uses \u003cstrong data-start=\"4079\" data-end=\"4106\"\u003eECOSE binder technology\u003c\/strong\u003e rather than a conventional binder system.\u003c\/p\u003e\n\u003cp data-start=\"4150\" data-end=\"4302\"\u003eThe binder is based predominantly on naturally derived organic raw materials and holds the mineral fibres together to create a stable propagation block.\u003c\/p\u003e\n\u003cp data-start=\"4304\" data-end=\"4387\"\u003eThis is one of the distinguishing characteristics of the Speedgrow Earthwool range.\u003c\/p\u003e\n\u003ch2 data-section-id=\"jj9qjp\" data-start=\"4389\" data-end=\"4423\"\u003eDesigned for Controlled Feeding\u003c\/h2\u003e\n\u003cp data-start=\"4425\" data-end=\"4538\"\u003eMineral fibre growing media allows growers to control what reaches the root zone through the irrigation solution.\u003c\/p\u003e\n\u003cp data-start=\"4540\" data-end=\"4574\"\u003eThis can make it easier to manage:\u003c\/p\u003e\n\u003cul data-start=\"4576\" data-end=\"4688\"\u003e\n\u003cli data-section-id=\"1mf7t8y\" data-start=\"4576\" data-end=\"4600\"\u003eNutrient concentration\u003c\/li\u003e\n\u003cli data-section-id=\"177qsb7\" data-start=\"4601\" data-end=\"4621\"\u003eRoot-zone moisture\u003c\/li\u003e\n\u003cli data-section-id=\"fqp89i\" data-start=\"4622\" data-end=\"4644\"\u003eIrrigation frequency\u003c\/li\u003e\n\u003cli data-section-id=\"yhmt8w\" data-start=\"4645\" data-end=\"4649\"\u003epH\u003c\/li\u003e\n\u003cli data-section-id=\"yhmtvy\" data-start=\"4650\" data-end=\"4654\"\u003eEC\u003c\/li\u003e\n\u003cli data-section-id=\"8o6wn5\" data-start=\"4655\" data-end=\"4665\"\u003eDry-back\u003c\/li\u003e\n\u003cli data-section-id=\"6evjhh\" data-start=\"4666\" data-end=\"4688\"\u003eFertigation strategy\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"4690\" data-end=\"4805\"\u003eThe block therefore works particularly well in cultivation systems where precise root-zone management is important.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1a3ueyz\" data-start=\"4807\" data-end=\"4824\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv class=\"group TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"4826\" data-end=\"5521\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"4826\" data-end=\"4853\"\u003e\n\u003ctr data-start=\"4826\" data-end=\"4853\"\u003e\n\u003cth data-start=\"4826\" data-end=\"4842\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eSpecification\u003c\/th\u003e\n\u003cth data-start=\"4842\" data-end=\"4853\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"4864\" data-end=\"5521\"\u003e\n\u003ctr data-start=\"4864\" data-end=\"4889\"\u003e\n\u003ctd data-start=\"4864\" data-end=\"4876\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"4866\" data-end=\"4875\"\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"4876\" data-end=\"4889\"\u003eSpeedgrow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4890\" data-end=\"4936\"\u003e\n\u003ctd data-start=\"4890\" data-end=\"4909\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"4892\" data-end=\"4908\"\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"4909\" data-end=\"4936\" data-col-size=\"sm\"\u003eAgra-Wool International\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4937\" data-end=\"4986\"\u003e\n\u003ctd data-start=\"4937\" data-end=\"4956\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"4939\" data-end=\"4955\"\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"4956\" data-end=\"4986\" data-col-size=\"sm\"\u003ePropagation \/ Starter Cube\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4987\" data-end=\"5035\"\u003e\n\u003ctd data-start=\"4987\" data-end=\"5008\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"4989\" data-end=\"5007\"\u003eGrowing Medium\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"5008\" data-end=\"5035\" data-col-size=\"sm\"\u003eEarthwool Mineral Fibre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"5036\" data-end=\"5081\"\u003e\n\u003ctd data-start=\"5036\" data-end=\"5059\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"5038\" data-end=\"5058\"\u003eBlock Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"5059\" data-end=\"5081\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"5061\" data-end=\"5079\"\u003e75 x 75 x 65mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"5082\" data-end=\"5114\"\u003e\n\u003ctd data-start=\"5082\" data-end=\"5102\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"5084\" data-end=\"5101\"\u003eHole Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"5102\" data-end=\"5114\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"5104\" data-end=\"5112\"\u003e38mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"5115\" data-end=\"5144\"\u003e\n\u003ctd data-start=\"5115\" data-end=\"5132\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"5117\" data-end=\"5131\"\u003eHole Depth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"5132\" data-end=\"5144\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"5134\" data-end=\"5142\"\u003e35mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"5145\" data-end=\"5170\"\u003e\n\u003ctd data-start=\"5145\" data-end=\"5161\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"5147\" data-end=\"5160\"\u003eHole Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"5161\" data-end=\"5170\" data-col-size=\"sm\"\u003eLarge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"5171\" data-end=\"5204\"\u003e\n\u003ctd data-start=\"5171\" data-end=\"5195\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"5173\" data-end=\"5194\"\u003eBinder Technology\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"5195\" data-end=\"5204\" data-col-size=\"sm\"\u003eECOSE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"5205\" data-end=\"5263\"\u003e\n\u003ctd data-start=\"5205\" data-end=\"5225\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"5207\" data-end=\"5224\"\u003eBase Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"5225\" data-end=\"5263\" data-col-size=\"sm\"\u003eMineral fibre produced from basalt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"5264\" data-end=\"5318\"\u003e\n\u003ctd data-start=\"5264\" data-end=\"5290\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"5266\" data-end=\"5289\"\u003eTypical Application\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"5290\" data-end=\"5318\"\u003ePropagation \/ Growing On\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"5319\" data-end=\"5369\"\u003e\n\u003ctd data-start=\"5319\" data-end=\"5338\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"5321\" data-end=\"5337\"\u003eSuitable For\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"5338\" data-end=\"5369\" data-col-size=\"sm\"\u003eSeedlings \u0026amp; Rooted Cuttings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"5370\" data-end=\"5436\"\u003e\n\u003ctd data-start=\"5370\" data-end=\"5399\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"5372\" data-end=\"5398\"\u003eCompatible Plug Format\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"5399\" data-end=\"5436\" data-col-size=\"sm\"\u003e38 x 35mm class propagation plugs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"5437\" data-end=\"5474\"\u003e\n\u003ctd data-start=\"5437\" data-end=\"5467\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"5439\" data-end=\"5466\"\u003eApprox. Dry Unit Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"5467\" data-end=\"5474\"\u003e30g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"5475\" data-end=\"5521\"\u003e\n\u003ctd data-start=\"5475\" data-end=\"5508\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"5477\" data-end=\"5507\"\u003eCommercial Carton Quantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"5508\" data-end=\"5521\" data-col-size=\"sm\"\u003e224 cubes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 data-section-id=\"1ravkm9\" data-start=\"5523\" data-end=\"5569\"\u003eHow to Use Speedgrow 75mm Propagation Cubes\u003c\/h2\u003e\n\u003ch3 data-section-id=\"1ebe1hs\" data-start=\"5571\" data-end=\"5594\"\u003e1. Prepare the Cube\u003c\/h3\u003e\n\u003cp data-start=\"5596\" data-end=\"5638\"\u003eWet the block evenly before transplanting.\u003c\/p\u003e\n\u003cp data-start=\"5640\" data-end=\"5753\"\u003eThe aim is to achieve consistent moisture throughout the cube rather than leaving dry areas within the substrate.\u003c\/p\u003e\n\u003ch3 data-section-id=\"g3emvw\" data-start=\"5755\" data-end=\"5789\"\u003e2. Insert the Propagation Plug\u003c\/h3\u003e\n\u003cp data-start=\"5791\" data-end=\"5858\"\u003ePlace the established propagation plug into the \u003cstrong data-start=\"5839\" data-end=\"5857\"\u003e38 x 35mm hole\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"5860\" data-end=\"5941\"\u003eThe plug should sit securely without being compressed or forced into the opening.\u003c\/p\u003e\n\u003ch3 data-section-id=\"r4hq43\" data-start=\"5943\" data-end=\"5974\"\u003e3. Allow Roots to Establish\u003c\/h3\u003e\n\u003cp data-start=\"5976\" data-end=\"6112\"\u003eMaintain appropriate moisture and environmental conditions while the roots expand from the original plug into the surrounding Earthwool.\u003c\/p\u003e\n\u003cp data-start=\"6114\" data-end=\"6251\"\u003eAvoid repeatedly saturating the block simply because the upper surface appears dry. Root-zone moisture should guide irrigation decisions.\u003c\/p\u003e\n\u003ch3 data-section-id=\"177i8lv\" data-start=\"6253\" data-end=\"6284\"\u003e4. Begin Controlled Feeding\u003c\/h3\u003e\n\u003cp data-start=\"6286\" data-end=\"6394\"\u003eIntroduce an appropriate nutrient program according to crop requirements and the stage of plant development.\u003c\/p\u003e\n\u003cp data-start=\"6396\" data-end=\"6495\"\u003eMonitor nutrient strength and pH according to the requirements of your crop and cultivation method.\u003c\/p\u003e\n\u003ch3 data-section-id=\"emf00h\" data-start=\"6497\" data-end=\"6525\"\u003e5. Transplant or Grow On\u003c\/h3\u003e\n\u003cp data-start=\"6527\" data-end=\"6635\"\u003eOnce the cube has developed a strong root system, it can be moved into the next stage of the growing system.\u003c\/p\u003e\n\u003cp data-start=\"6637\" data-end=\"6678\"\u003eDepending on the setup, this may include:\u003c\/p\u003e\n\u003cul data-start=\"6680\" data-end=\"6845\"\u003e\n\u003cli data-section-id=\"1vsxsm2\" data-start=\"6680\" data-end=\"6710\"\u003eLarger Speedgrow grow blocks\u003c\/li\u003e\n\u003cli data-section-id=\"1grn3jo\" data-start=\"6711\" data-end=\"6729\"\u003eHydroponic slabs\u003c\/li\u003e\n\u003cli data-section-id=\"1g32617\" data-start=\"6730\" data-end=\"6755\"\u003eDrip irrigation systems\u003c\/li\u003e\n\u003cli data-section-id=\"59ym7f\" data-start=\"6756\" data-end=\"6781\"\u003eFlood and drain systems\u003c\/li\u003e\n\u003cli data-section-id=\"ewgpgz\" data-start=\"6782\" data-end=\"6801\"\u003eLarger containers\u003c\/li\u003e\n\u003cli data-section-id=\"iwnp74\" data-start=\"6802\" data-end=\"6845\"\u003eOther compatible hydroponic growing media\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"1wzu0xa\" data-start=\"6847\" data-end=\"6882\"\u003eIdeal for Hydroponic Propagation\u003c\/h2\u003e\n\u003cp data-start=\"6884\" data-end=\"7025\"\u003eThe 75mm Speedgrow cube is particularly useful for growers who want more root volume before placing a plant into its final hydroponic system.\u003c\/p\u003e\n\u003cp data-start=\"7027\" data-end=\"7052\"\u003eApplications can include:\u003c\/p\u003e\n\u003cul data-start=\"7054\" data-end=\"7277\"\u003e\n\u003cli data-section-id=\"1xnrrct\" data-start=\"7054\" data-end=\"7078\"\u003eHydroponic propagation\u003c\/li\u003e\n\u003cli data-section-id=\"15n7ckd\" data-start=\"7079\" data-end=\"7100\"\u003eIndoor horticulture\u003c\/li\u003e\n\u003cli data-section-id=\"1y3fntd\" data-start=\"7101\" data-end=\"7125\"\u003eGreenhouse propagation\u003c\/li\u003e\n\u003cli data-section-id=\"i65jz1\" data-start=\"7126\" data-end=\"7143\"\u003eDrip irrigation\u003c\/li\u003e\n\u003cli data-section-id=\"qxzwwu\" data-start=\"7144\" data-end=\"7157\"\u003eFertigation\u003c\/li\u003e\n\u003cli data-section-id=\"1f78lrz\" data-start=\"7158\" data-end=\"7178\"\u003eNursery production\u003c\/li\u003e\n\u003cli data-section-id=\"8hy1ni\" data-start=\"7179\" data-end=\"7203\"\u003eSeedling establishment\u003c\/li\u003e\n\u003cli data-section-id=\"nsudt6\" data-start=\"7204\" data-end=\"7221\"\u003eRooted cuttings\u003c\/li\u003e\n\u003cli data-section-id=\"1uxyynj\" data-start=\"7222\" data-end=\"7248\"\u003eVegetative establishment\u003c\/li\u003e\n\u003cli data-section-id=\"195w7ig\" data-start=\"7249\" data-end=\"7277\"\u003eMineral fibre slab systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"1boj1dw\" data-start=\"7279\" data-end=\"7317\"\u003e75mm Cube vs Small Propagation Plug\u003c\/h2\u003e\n\u003cp data-start=\"7319\" data-end=\"7457\"\u003eA small propagation plug is ideal for germination and initial rooting, but its limited volume eventually restricts further root expansion.\u003c\/p\u003e\n\u003cp data-start=\"7459\" data-end=\"7510\"\u003eThe \u003cstrong data-start=\"7463\" data-end=\"7509\"\u003e75mm Speedgrow cube provides the next step\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"7512\" data-end=\"7648\"\u003eThe young plant remains inside its original plug while the surrounding block provides substantially more substrate for root development.\u003c\/p\u003e\n\u003cp data-start=\"7650\" data-end=\"7798\"\u003eThis staged approach allows growers to use space efficiently during early propagation before increasing the root-zone volume as each plant develops.\u003c\/p\u003e\n\u003ch2 data-section-id=\"9fiwir\" data-start=\"7800\" data-end=\"7833\"\u003eWhy Choose the 38 x 35mm Hole?\u003c\/h2\u003e\n\u003cp data-start=\"7835\" data-end=\"7937\"\u003eThe larger hole is particularly useful when your propagation system already uses \u003cstrong data-start=\"7916\" data-end=\"7936\"\u003e38mm-class plugs\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"7939\" data-end=\"8106\"\u003eInstead of attempting to fit a larger plug into a small planting hole, the appropriately sized opening allows the propagation plug to transfer directly into the block.\u003c\/p\u003e\n\u003cp data-start=\"8108\" data-end=\"8244\"\u003eFor growers standardising a propagation system, matching plug and starter-block sizes can make transplanting faster and more consistent.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1o0xw1b\" data-start=\"8246\" data-end=\"8288\"\u003eWhy Choose Speedgrow Propagation Cubes?\u003c\/h2\u003e\n\u003cp data-start=\"8290\" data-end=\"8409\"\u003eSpeedgrow combines the control associated with mineral fibre cultivation with a modern Earthwool manufacturing process.\u003c\/p\u003e\n\u003cp data-start=\"8411\" data-end=\"8630\"\u003eThe \u003cstrong data-start=\"8415\" data-end=\"8450\"\u003e75 x 75 x 65mm large-hole block\u003c\/strong\u003e is particularly useful as an intermediate stage because it gives developing plants additional rooting volume without immediately moving them into a large block or final container.\u003c\/p\u003e\n\u003cp data-start=\"8632\" data-end=\"8781\"\u003eFor growers already using Speedgrow 38mm propagation plugs, the matching \u003cstrong data-start=\"8705\" data-end=\"8723\"\u003e38 x 35mm hole\u003c\/strong\u003e also creates a straightforward plug-to-block progression.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1r8frcv\" data-start=\"8783\" data-end=\"8812\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3 data-section-id=\"1sz5bsh\" data-start=\"8814\" data-end=\"8851\"\u003eWhat size is this Speedgrow cube?\u003c\/h3\u003e\n\u003cp data-start=\"8853\" data-end=\"8910\"\u003eThe block measures \u003cstrong data-start=\"8872\" data-end=\"8909\"\u003e75mm long x 75mm wide x 65mm high\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-section-id=\"l7gicc\" data-start=\"8912\" data-end=\"8947\"\u003eWhat size is the planting hole?\u003c\/h3\u003e\n\u003cp data-start=\"8949\" data-end=\"9029\"\u003eThe large planting hole measures approximately \u003cstrong data-start=\"8996\" data-end=\"9028\"\u003e38mm in diameter x 35mm deep\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-section-id=\"ieeb6z\" data-start=\"9031\" data-end=\"9052\"\u003eIs this rockwool?\u003c\/h3\u003e\n\u003cp data-start=\"9054\" data-end=\"9322\"\u003eSpeedgrow describes its growing medium as \u003cstrong data-start=\"9096\" data-end=\"9109\"\u003eEarthwool\u003c\/strong\u003e, a mineral fibre substrate produced using basalt-based mineral material and ECOSE binder technology. It performs the same general horticultural role commonly associated with stone wool or rockwool growing blocks.\u003c\/p\u003e\n\u003ch3 data-section-id=\"3ebrdh\" data-start=\"9324\" data-end=\"9355\"\u003eWho manufactures Speedgrow?\u003c\/h3\u003e\n\u003cp data-start=\"9357\" data-end=\"9414\"\u003eSpeedgrow is manufactured by \u003cstrong data-start=\"9386\" data-end=\"9413\"\u003eAgra-Wool International\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1txo6f9\" data-start=\"9416\" data-end=\"9454\"\u003eWhat fits into the 38 x 35mm hole?\u003c\/h3\u003e\n\u003cp data-start=\"9456\" data-end=\"9559\"\u003eIt is designed for compatible larger propagation plugs, including \u003cstrong data-start=\"9522\" data-end=\"9558\"\u003e38 x 35mm Speedgrow plug formats\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-section-id=\"cv8f9u\" data-start=\"9561\" data-end=\"9604\"\u003eCan I put a rooted cutting in the cube?\u003c\/h3\u003e\n\u003cp data-start=\"9606\" data-end=\"9757\"\u003eYes. The block is suitable for young rooted plants and cuttings, particularly where the cutting has first established in a compatible propagation plug.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1pjbb31\" data-start=\"9759\" data-end=\"9785\"\u003eCan seedlings be used?\u003c\/h3\u003e\n\u003cp data-start=\"9787\" data-end=\"9904\"\u003eYes. Seedlings established in a compatible plug can be transplanted into the 75mm block for further root development.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1qv4l74\" data-start=\"9906\" data-end=\"9931\"\u003eIs the cube reusable?\u003c\/h3\u003e\n\u003cp data-start=\"9933\" data-end=\"10122\"\u003eMineral fibre blocks are primarily intended as growing media for an individual crop cycle. Whether reuse is practical depends on root contamination, sanitation and the intended application.\u003c\/p\u003e\n\u003ch3 data-section-id=\"dt768\" data-start=\"10124\" data-end=\"10162\"\u003eCan I use the cube in hydroponics?\u003c\/h3\u003e\n\u003cp data-start=\"10164\" data-end=\"10284\"\u003eYes. Controlled hydroponic cultivation is one of the primary applications for this style of mineral fibre growing block.\u003c\/p\u003e\n\u003ch3 data-section-id=\"f06olt\" data-start=\"10286\" data-end=\"10316\"\u003eDoes it contain nutrients?\u003c\/h3\u003e\n\u003cp data-start=\"10318\" data-end=\"10516\"\u003eTreat the block as a \u003cstrong data-start=\"10339\" data-end=\"10413\"\u003econtrolled growing substrate rather than a complete fertiliser program\u003c\/strong\u003e. Once plants require feeding, provide an appropriate nutrient solution according to crop requirements.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1y1j6kx\" data-start=\"10518\" data-end=\"10560\"\u003eCan I place it on a larger grow block?\u003c\/h3\u003e\n\u003cp data-start=\"10562\" data-end=\"10685\"\u003eYes. Once sufficiently rooted, the starter block can be incorporated into a larger compatible mineral fibre growing system.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1bsl5ro\" data-start=\"10687\" data-end=\"10716\"\u003eCan it be used on a slab?\u003c\/h3\u003e\n\u003cp data-start=\"10718\" data-end=\"10868\"\u003eYes. Starter blocks of this type are commonly used as an intermediate propagation stage before plants are established onto larger mineral fibre slabs.\u003c\/p\u003e\n\u003ch3 data-section-id=\"guxrpm\" data-start=\"10870\" data-end=\"10932\"\u003eShould I remove the propagation plug before transplanting?\u003c\/h3\u003e\n\u003cp data-start=\"10934\" data-end=\"11116\"\u003eNo. A major advantage of using compatible plugs and starter blocks is that the \u003cstrong data-start=\"11013\" data-end=\"11080\"\u003eentire rooted propagation plug can be transferred into the cube\u003c\/strong\u003e, helping minimise root disturbance.\u003c\/p\u003e","brand":"Speedgrow","offers":[{"title":"Each","offer_id":67476587348258,"sku":"PSPPSP6537S-1","price":1.0,"currency_code":"AUD","in_stock":true},{"title":"Ctn of 224","offer_id":67476587381026,"sku":"PSPPSP6537S-2","price":189.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0728\/6833\/1810\/files\/8c8e7211-SPEEDGROW-75-X-75-X-65MM.jpg?v=1791423184","url":"https:\/\/www.greengenius.com.au\/products\/speedgrow-75-x-75-x-65mm-cube-38-x-35mm-hole","provider":"Green Genius","version":"1.0","type":"link"}