{"title":"Rock Wool Cubes \u0026 Slabs","description":"\u003cp\u003eRockwool cubes and slabs provide a consistent, soilless growing medium for seed starting, propagation, and hydroponic cultivation. Designed to hold moisture while maintaining airflow around the roots, rockwool supports healthy root development from early propagation through the growing cycle.\u003c\/p\u003e","products":[{"product_id":"macro-plug-round-50-pack","title":"Grodan Macroplugs","description":"\u003cp\u003eMacroplugs are 1.5\" round with a slit that allows easy insertion of a cutting. These loose round plugs fit perfectly into the Gro-Block hole. For best results with these Macroplugs always insert them in a tray with individual cells. The individual cell will make sure the plug stays closed around the stem of your cutting.\u003c\/p\u003e","brand":"Sunlight Supply","offers":[{"title":"50 Pack","offer_id":41579645337660,"sku":"158911248278","price":18.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/9113\/4268\/files\/18dfc483b4628a1b32ce1e83a0b43d7f.jpg?v=1755985714"},{"product_id":"grodan-grow-cubes-2-cu-ft","title":"Grodan Grow-Cubes","description":"\u003cdiv class=\"full-description-section product-section\"\u003e\n\u003cp\u003eGrodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different plant stages. Grodan has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen for rapid plant growth. Grodan comes in graduated sizes. Seedlings started in cubes are easily transferred to blocks and then onto slabs, if desired. Seedlings or cuttings started in the Grodan cubes can also be transplanted into more traditional planters and growing mediums.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGrodan Grow-Cubes\u003c\/strong\u003e - The product consists of small stonewool croutons about the size of a fingernail. When you use this potting mix the miniature cubes stack on top of each other and air pockets are created throughout the pot. Grow-Cubes are difficult to overwater if the container has good drainage. The Grow-Cubes are a lightweight alternative to your regular potting mix. You can use Grow-Cubes in any size pot and in many different growing systems, such as ebb \u0026amp; flow, top watering, or just with a watering can. Good results have been seen even with continuous watering. Grow-Cubes do not need to be changed, as they last for the life of your plant. If you are new to hydroponics, then this is the product you should choose. Complete with package instructions, Grow-Cubes are easy to use and reasonably priced.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Greener Gardens","offers":[{"title":"2 cu ft","offer_id":41579713462332,"sku":"035131471016","price":59.95,"currency_code":"USD","in_stock":true},{"title":"5.07 cu ft Loose","offer_id":43949419036732,"sku":"021413072958","price":144.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/9113\/4268\/files\/f648b3fccea2fd2d70e8952f2d170792.jpg?v=1770337951"},{"product_id":"grodan-a-ok-starter-cubes","title":"Grodan A-OK Starter Cubes","description":"\u003cdiv class=\"full-description-section product-section\"\u003e\n\u003cp\u003eGrodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different plant stages. Grodan has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen for rapid plant growth. Grodan comes in graduated sizes. Seedlings started in cubes are easily transferred to blocks and then onto slabs, if desired. Seedlings or cuttings started in the Grodan cubes can also be transplanted into more traditional planters and growing mediums.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGrodan A-OK plugs\u003c\/strong\u003e are designed for seed and cutting propagation prior to \"blocking on\" into larger growing blocks. The V-shape design of the plug discourages tangling of roots between the plugs in the A-OK plug sheet. A-OK plugs come in a sheet that fits a standard 10x20 flat.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Greener Gardens","offers":[{"title":"1.5\" x 1.5\" - 98 Count Sheet","offer_id":42085012963388,"sku":"158914234698","price":17.95,"currency_code":"USD","in_stock":true},{"title":"1.5\" x 1.5\" - Case of 30 Sheets","offer_id":42085012996156,"sku":"158919916568","price":499.95,"currency_code":"USD","in_stock":true},{"title":"2\" x 2\" - 50 Count Sheet","offer_id":42085013028924,"sku":"158912862022","price":17.95,"currency_code":"USD","in_stock":true},{"title":"2\" x 2\" - Case of 30 Sheets","offer_id":42085013061692,"sku":"158917479249","price":449.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/9113\/4268\/files\/ed8db12e9e152e403127a3c4b33557a7.jpg?v=1763673516"},{"product_id":"grodan-mini-blocks","title":"Grodan Mini-Blocks","description":"\u003cdiv class=\"full-description-section product-section\"\u003e\n\u003cp\u003eGrodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool substrate and irrigation strategies for specialty crops. The result of months of scientific research and trials is Grodan Gro-Blocks Improved with Grodan’s Advanced Wetting Agent. \u003cbr\u003e\u003cbr\u003eThese leading-edge blocks have the optimal fiber structure and physical properties for crop uniformity, more even Water Content (WC) and Electrical Conductivity (EC) distribution throughout the entire block, and the greatest steering capabilities available. Water distribution is more uniform throughout the entire block which is the basis for a well-defined root system with higher capacities for water and nutrient uptake to produce robust and vigorous crops.\u003c\/p\u003e\n\u003cp\u003eNew and improved wetting agent and hydrophilic technology greatly enhances the water characteristics of Grodan Gro-Blocks Improved giving even better water distribution over the height of the block. This results in greater plant development and steerability and more efficient use of water and nutrients.\u003cbr\u003e\u003cbr\u003eOptimized wool structure allows for faster rooting-in and nutrient solution replenishment, all while the Gro-Block Improved maintains its structure, firmness, and rigidity throughout the growing process.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Greener Gardens","offers":[{"title":"1.5\" - 45 Blocks\/Strip","offer_id":42085018370108,"sku":"158914055286","price":11.95,"currency_code":"USD","in_stock":true},{"title":"1.5\" - Case of 50 Strips","offer_id":42085018402876,"sku":"22889","price":474.95,"currency_code":"USD","in_stock":true},{"title":"2\" - 24 Blocks\/Strip","offer_id":42085018435644,"sku":"158914386618","price":11.95,"currency_code":"USD","in_stock":true},{"title":"2\" - Case of 60 Strips","offer_id":42085018468412,"sku":"158913875519","price":474.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/9113\/4268\/files\/ed8db12e9e152e403127a3c4b33557a7_3c41c23b-0316-4aa3-80cf-788258d59765.jpg?v=1770337987"},{"product_id":"grodan-gro-blocks","title":"Grodan Gro-Blocks","description":"\u003cdiv class=\"full-description-section product-section\"\u003e\n\u003cdiv class=\"full-description-section product-section\"\u003e\n\u003cp\u003eGrodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool substrate and irrigation strategies for specialty crops. The result of months of scientific research and trials is Grodan Gro-Blocks Improved with our Advanced Wetting Agent. \u003cbr\u003e\u003cbr\u003eThese leading-edge blocks have the optimal fibre structure and physical properties for crop uniformity, more even Water Content (WC) and Electrical Conductivity (EC) distribution throughout the entire block, and the greatest steering capabilities available. Water distribution is more uniform throughout the entire block which is the basis for a well-defined root system with higher capacities for water and nutrient uptake to produce robust and vigorous crops.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eGro Block Improved GR4 Small 3\" w\/Hole 3\" x 3\" x 2.6\" Strip\u003cbr\u003eGro Block Improved GR6.5 Small 4\" w\/Hole, 4\" x 4\" x 2.6\" Shrink wrapped\/Strip\u003cbr\u003eGro Block Improved GR7.5 Medium 4\" w\/Hole 4\" x 4\" x 3\" Strip\u003cbr\u003eGro Block Improved GR10 Large 4\" w\/Hole 4\" x 4\" x 4\" Strip\u003cbr\u003eGro Block Big Mama, 6\" x 6\" x 5.6\" Block\u003cbr\u003eGro Block Big Mama, 8\" x 8\" x 8\" Block\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Greener Gardens","offers":[{"title":"GR4 - SINGLE BLOCK","offer_id":42856043610172,"sku":"158916383219","price":0.95,"currency_code":"USD","in_stock":true},{"title":"GR4 Small 3\" w\/Hole 3\" x 3\" x 2.6\"","offer_id":42143292227644,"sku":"158916029605","price":5.95,"currency_code":"USD","in_stock":true},{"title":"GR4 - Case of 48","offer_id":42143292194876,"sku":"158915614536","price":219.95,"currency_code":"USD","in_stock":true},{"title":"GR6.5 - SINGLE BLOCK","offer_id":42856043675708,"sku":"158919354674","price":1.25,"currency_code":"USD","in_stock":true},{"title":"GR6.5 Small 4\" w\/Hole, 4\" x 4\" x 2.6\" Strip","offer_id":42143208177724,"sku":"158913359224","price":6.95,"currency_code":"USD","in_stock":true},{"title":"GR6.5 - Case of 36","offer_id":42143208144956,"sku":"158919501207","price":219.95,"currency_code":"USD","in_stock":true},{"title":"GR7.5 - SINGLE BLOCK","offer_id":42856043642940,"sku":"158912957315","price":1.75,"currency_code":"USD","in_stock":true},{"title":"GR7.5 – 4“ (4\" x 4\" x 3\")","offer_id":42143310413884,"sku":"158917079524","price":8.95,"currency_code":"USD","in_stock":true},{"title":"GR7.5 – Case of 30","offer_id":42143310381116,"sku":"158916111119","price":224.95,"currency_code":"USD","in_stock":false},{"title":"GR10 - SINGLE BLOCK","offer_id":42143317131324,"sku":"158916107556","price":1.75,"currency_code":"USD","in_stock":true},{"title":"GR10 - 4\" x 4\" x 4\"","offer_id":42143208112188,"sku":"158916470377","price":9.95,"currency_code":"USD","in_stock":true},{"title":"GR10 - Case of 24","offer_id":42143208079420,"sku":"158912032104","price":214.95,"currency_code":"USD","in_stock":true},{"title":"Hugo Single Block - 6\" x 6\" x 5.8\"","offer_id":42142910349372,"sku":"158916102261","price":4.5,"currency_code":"USD","in_stock":true},{"title":"Hugo - Case of 64","offer_id":42142910382140,"sku":"16640","price":259.95,"currency_code":"USD","in_stock":true},{"title":"Big Mama Single Block - 8\" x 8\" x 8\"","offer_id":42143310348348,"sku":"158917026900","price":9.95,"currency_code":"USD","in_stock":true},{"title":"Big Mama - Case of 18","offer_id":42143310315580,"sku":"30812","price":159.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/9113\/4268\/files\/3f38c5ce7992778655a09d2a8cdc155b_a7b981e3-5a03-4a55-90fe-327f205d0229.jpg?v=1775355478"},{"product_id":"grodan-gro-slabs","title":"Grodan Gro-Slabs","description":"\u003cdiv class=\"full-description-section product-section\"\u003e\n\u003cp\u003e\u003cstrong\u003eGrodan Improved Gro-Slab\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eGrodan Improved Gro-Slabs and Uni-Slabs offer a wide control range to steer your crop using irrigation strategies. Featuring the Advanced Wetting Agent, Gro-Slabs offer more uniform WC and EC distribution throughout each slab and from slab to slab. Fast rooting and vigorous growth throughout the entire growing cycle improve cannabis plant health, better resilience and higher yields. The improved slab structure and physical properties guarantee rapid resaturation within a wide steering range.\u003cbr\u003e\u003cbr\u003eGrodan Improved Gro-Slabs are the ideal solution for growers seeking a reliable substrate that facilitates easy irrigation and leaves nothing to chance throughout the cultivation period.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eApplication\u003cbr\u003e\u003c\/strong\u003eGrodan Improved Gro-Slabs and Uni-Slabs are extremely versatile and lend themselves perfectly to the cultivation of cannabis. Blooming plants will show fast growth, uniform stem development and early setting.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eProduct Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eSingle plant and multi-plant slab options\u003c\/li\u003e\n\u003cli\u003eVertical fiber orientation\u003c\/li\u003e\n\u003cli\u003eInert hydrophilic fiber technology\u003c\/li\u003e\n\u003cli\u003eHigh resaturation capacity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Greener Gardens","offers":[{"title":"36 x 6 x 3 - Slab","offer_id":42148880318524,"sku":"158917373936","price":12.95,"currency_code":"USD","in_stock":false},{"title":"36 x 6 x 3 - Case of 12","offer_id":42148880351292,"sku":"30904","price":124.95,"currency_code":"USD","in_stock":false},{"title":"36 x 8 x 3 - Slab","offer_id":42148880384060,"sku":"158912014254","price":12.95,"currency_code":"USD","in_stock":false},{"title":"36 x 8 x 3 - Case of 12","offer_id":42148880416828,"sku":"158914974396","price":139.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/9113\/4268\/files\/900683ba5522b881f88d8f2bb1c3c5c7.jpg?v=1776805640"},{"product_id":"grodan-grow-chunks","title":"Grodan Grow-Chunks","description":"\u003cdiv class=\"full-description-section product-section\"\u003e\n\u003cp\u003e\u003cstrong\u003eGrodan® Grow-Chunks™\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e- 2.0cu ft - No Holes - 3\/4in Chunks - Bagged\u003c\/p\u003e\n\u003cdiv\u003eThe Grodan® Grow-Chunks™ are stonewool pieces that provide moisture retention and aeration for hydroponic and container growing. Can be used alone or blended with other media to support root development and reduce irrigation frequency. Their structure helps maintain consistent moisture levels. Designed for flexibility, they support a wide range of growing methods.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Greener Gardens","offers":[{"title":"2 cu ft","offer_id":45480558198844,"sku":"021416992161","price":59.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/9113\/4268\/files\/450a8f4a-dc46-44ad-a9cb-dc15ad866bef.jpg?v=1781121809"}],"url":"https:\/\/greenergardensmn.com\/collections\/rock-wool-cubes-slabs.oembed","provider":"Greener Gardens","version":"1.0","type":"link"}