{"title":"Rockwool","description":"","products":[{"product_id":"cultiwool-rockwool-grow-cubes","title":"Bulk Rockwool Cubes | Cultiwool Donut Ring","description":"\u003cp\u003e\u003cem\u003eDesigned for commercial farms and hydroponic facilities, Cultiwool Rockwool Grow Cubes with Donut Ring deliver reliable rooting, precise irrigation, and consistent performance in bulk. These professional-grade cubes eliminate dry cores, improve drainage, and support predictable crop cycles at scale.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eWhy Choose Bulk Rockwool Cubes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEven irrigation:\u003c\/strong\u003e Donut-ring planting hole distributes drip flow evenly to prevent dry centers or oversaturation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrainage built in:\u003c\/strong\u003e Bottom grooves move runoff away to reduce standing water and cleanliness issues.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStable fiber density:\u003c\/strong\u003e Consistent structure maintains uniform porosity for balanced oxygen and moisture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommercial quality:\u003c\/strong\u003e Manufactured for large-scale farms where every block must perform the same, crop after crop.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInert medium:\u003c\/strong\u003e Enables precise EC and pH control—ideal for irrigation steering in controlled environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSizes \u0026amp; Pack Options\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e6″ × 6″ × 6″ (Donut Ring)\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase — 48 cubes\u003c\/strong\u003e: Ideal for testing layouts or smaller zones.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePallet — 768 cubes\u003c\/strong\u003e: Bulk supply for commercial programs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6″ × 6″ × 4″ (Donut Ring)\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase — 64 cubes\u003c\/strong\u003e: Tighter canopies or quicker dry-back strategies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePallet — 1280 cubes\u003c\/strong\u003e: High-volume propagation \u0026amp; production.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow to Use\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-condition:\u003c\/strong\u003e Soak cubes in pH-adjusted water (5.5–5.8) until evenly saturated.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert propagation plug:\u003c\/strong\u003e Place seedlings or clones into the donut-ring chamber for uniform hydration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIrrigate consistently:\u003c\/strong\u003e Run cycles with 10–20% runoff to maintain balance and avoid salt buildup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMonitor EC \u0026amp; pH:\u003c\/strong\u003e Use the cube’s porosity to fine-tune feeding and optimize plant response.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stone wool (rockwool)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable Sizes:\u003c\/strong\u003e 6″ × 6″ × 6″ (≈150 × 150 × 150 mm); 6″ × 6″ × 4″ (≈150 × 150 × 100 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeatures:\u003c\/strong\u003e Donut-ring planting hole, bottom drain grooves\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e 6×6×6 — Case 48 \/ Pallet 768; 6×6×4 — Case 64 \/ Pallet 1280\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystems:\u003c\/strong\u003e Compatible with drip irrigation, ebb \u0026amp; flow, and run-to-waste setups\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Large-scale hydroponics, controlled-environment cultivation, farm propagation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does the donut ring do?\u003c\/strong\u003e\u003cbr\u003eIt distributes water evenly through the cube, preventing dry cores and supporting uniform root development.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need special grow tables?\u003c\/strong\u003e\u003cbr\u003eNo. These cubes work on standard benches, flood tables, or concrete floors.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan rockwool cubes be reused?\u003c\/strong\u003e\u003cbr\u003eFor commercial farms, reuse isn’t recommended. Single-cycle use supports hygiene, consistency, and disease prevention.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich size should I pick?\u003c\/strong\u003e\u003cbr\u003eChoose \u003cstrong\u003e6″×6″×6″\u003c\/strong\u003e when you want a larger root zone or longer veg; choose \u003cstrong\u003e6″×6″×4″\u003c\/strong\u003e for tighter canopies or faster dry-back strategies. Both include the donut ring and drain grooves.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre these suitable for hydroponics?\u003c\/strong\u003e\u003cbr\u003eYes—rockwool is widely used in hydroponics for its predictable water\/air balance and inert profile.\u003c\/p\u003e","brand":"Cultiwool","offers":[{"title":"6″ × 6″ × 6″ \/ Case - 48 Cubes","offer_id":46707895042305,"sku":null,"price":151.96,"currency_code":"USD","in_stock":true},{"title":"6″ × 6″ × 6″ \/ Pallet - 768 Cubes","offer_id":46707895075073,"sku":null,"price":1920.0,"currency_code":"USD","in_stock":true},{"title":"6\" x 6\" x 4\" \/ Pallet - 1280 Cubes","offer_id":46707899891969,"sku":null,"price":2880.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/2860\/0065\/files\/6x6x6-cultiwool-block.jpg?v=1756456707"},{"product_id":"bulk-cultiwool-rockwool-rooting-plugs","title":"Bulk Rockwool Rooting Plugs | Cultiwool","description":"\u003cp\u003e\u003cem\u003eDesigned for commercial farms and large-scale hydroponic facilities, \u003cstrong\u003eCultiwool Rockwool Rooting Plugs\u003c\/strong\u003e (1.4″ × 1.4″ × 1.6″) provide fast, uniform propagation that scales with your operation. These \u003cstrong\u003ebulk rockwool plugs\u003c\/strong\u003e are made from clean, inert stone wool engineered for consistent porosity, excellent drainage, and predictable rooting performance across thousands of plugs.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eWhy Choose Bulk Rockwool Plugs for Propagation?\u003c\/h2\u003e\n\u003cp\u003eCommercial propagation demands consistency, efficiency, and scalability. Unlike hobbyist media, \u003cstrong\u003ebulk rockwool plugs\u003c\/strong\u003e are manufactured for professional environments where every tray must perform. Cultiwool plugs ensure uniform results that cut labor time and reduce transplant loss, making them the standard choice for farms worldwide.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConsistent rooting results:\u003c\/strong\u003e Uniform density and porosity across every plug keeps growth predictable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized water\/air balance:\u003c\/strong\u003e Holds moisture evenly while maintaining oxygen at the root zone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSterile and inert:\u003c\/strong\u003e Stone wool is free from contaminants and maintains stable pH and EC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReady for scale:\u003c\/strong\u003e Bulk sheets and pallet options make Cultiwool a true commercial propagation solution.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eKey Features of Cultiwool Rockwool Rooting Plugs\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-formed planting holes:\u003c\/strong\u003e Fast, repeatable seed or cutting placement that improves efficiency in large propagation runs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast root initiation:\u003c\/strong\u003e Balanced porosity accelerates root development without waterlogging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy transplanting:\u003c\/strong\u003e Plug size nests seamlessly into 4″ or 6″ blocks, reducing stress during transfer to veg.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommercial scalability:\u003c\/strong\u003e Available in single sheets, cases, or pallets—ideal for everything from R\u0026amp;D trials to farm-scale production.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrusted quality:\u003c\/strong\u003e Manufactured to meet strict farm standards, providing cycle-after-cycle reliability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eBuying Options\u003c\/h2\u003e\n\u003cp\u003eChoose the right volume for your farm’s needs:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 Sheet — 84 plugs:\u003c\/strong\u003e For testing new genetics or small specialty projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e25 Sheets — 2,100 plugs:\u003c\/strong\u003e Supports mid-scale facilities with ongoing propagation programs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePallet — 375 Sheets \/ 31,500 plugs:\u003c\/strong\u003e Commercial bulk order designed for farms running perpetual propagation cycles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow to Use Cultiwool Rooting Plugs\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition the plugs:\u003c\/strong\u003e Pre-soak in pH-adjusted water (5.5–5.8) until evenly saturated.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert seeds or cuttings:\u003c\/strong\u003e Place directly into the pre-formed hole for fast and uniform placement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIrrigate consistently:\u003c\/strong\u003e Maintain steady moisture without oversaturation. Monitor EC and pH regularly for optimal uptake.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransplant:\u003c\/strong\u003e Once white roots are visible through the plug, transfer into larger rockwool blocks or your chosen grow medium.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e Stone wool (rockwool)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlug Size:\u003c\/strong\u003e 1.4″ × 1.4″ × 1.6″\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlugs per Sheet:\u003c\/strong\u003e 84\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable Options:\u003c\/strong\u003e 1 sheet, 25-sheet case (2,100 plugs), or pallet (31,500 plugs)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Clones, seedlings, and hydroponic propagation—suitable for cannabis, herbs, and leafy greens\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions About Rockwool Plugs\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre rockwool plugs reusable?\u003c\/strong\u003e\u003cbr\u003eNo. For commercial farms, it’s best practice to use fresh plugs each cycle to avoid contamination and ensure consistent results.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I prepare rockwool plugs for seeds?\u003c\/strong\u003e\u003cbr\u003eCondition plugs in pH-adjusted water (5.5–5.8) until evenly saturated before inserting seeds or cuttings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan rockwool plugs be used for hydroponics?\u003c\/strong\u003e\u003cbr\u003eYes. Rockwool is one of the most common hydroponic substrates due to its excellent water retention and oxygen availability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long do plants stay in rockwool plugs?\u003c\/strong\u003e\u003cbr\u003eTypically until strong white roots are visible. Most farms transplant into larger blocks or systems within 7–14 days, depending on crop and conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy choose bulk rockwool plugs over other propagation media?\u003c\/strong\u003e\u003cbr\u003eBulk plugs reduce variability, scale efficiently, and provide cleaner, more uniform results compared to soil, peat, or coco alternatives.\u003c\/p\u003e\n\u003ch2\u003ePro Tip for Commercial Farms\u003c\/h2\u003e\n\u003cp\u003eTo maximize efficiency, stagger your propagation trays weekly and use pallet orders of plugs to maintain perpetual cycles. This keeps seedlings uniform and ensures smooth transitions into veg and flower stages without bottlenecks.\u003c\/p\u003e","brand":"Cultiwool","offers":[{"title":"Pallet — 375 Sheets \/ 31500","offer_id":46676877443329,"sku":null,"price":4999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/2860\/0065\/files\/cultiwool-84-plug-sheet-rockwool-starter-plugs.webp?v=1756456261"},{"product_id":"150mm-cultiwool-rockwool-grow-cubes-donut-ring","title":"Cultiwool Rockwool Grow Blocks – 150 mm Cubes","description":"\u003cp\u003e\u003cstrong\u003ePallet delivery:\u003c\/strong\u003e Pallet orders require a freight quote and cannot be completed through standard online checkout. Contact 454 Bags before ordering a pallet to confirm delivery arrangements and the total shipping cost.\u003c\/p\u003e\u003ch2\u003eRockwool cubes for hydroponic growing systems\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eCultiwool rockwool grow blocks\u003c\/strong\u003e provide a structured root zone for hydroponic cultivation. The donut-ring planting hole and bottom drainage grooves support even wetting and drainage through irrigation cycles.\u003c\/p\u003e\u003cp\u003eStone wool is an inert growing medium, allowing you to manage nutrient strength, moisture and pH through your irrigation programme.\u003c\/p\u003e\u003ch3\u003eAvailable sizes and quantities\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\u003cstrong\u003e150 × 150 × 150 mm:\u003c\/strong\u003e a case of 48 cubes or a pallet of 768 cubes.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003e150 × 150 × 100 mm:\u003c\/strong\u003e a pallet of 1,280 cubes.\u003c\/li\u003e\u003cli\u003eDonut-ring planting hole for inserting a rooted propagation plug.\u003c\/li\u003e\u003cli\u003eBottom grooves to help direct drainage.\u003c\/li\u003e\u003cli\u003eSuitable for drip, ebb-and-flow and run-to-waste systems.\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrom propagation to a larger root zone\u003c\/h3\u003e\u003cp\u003eUse these rockwool cubes when rooted plugs are ready to move into a larger block. Prepare the growing medium and manage irrigation according to your crop and nutrient programme.\u003c\/p\u003e\u003cp\u003eThe 48-cube case is available through standard checkout. Both pallet formats require a freight quote before ordering.\u003c\/p\u003e\u003ch3\u003eDelivery to the United Kingdom\u003c\/h3\u003e\u003cp\u003eOrders are dispatched from the United States. Available international delivery services and charges are shown at checkout.\u003c\/p\u003e","brand":"Cultiwool","offers":[{"title":"150 × 150 × 150 mm \/ Case - 48 Cubes","offer_id":48075421417729,"sku":null,"price":151.96,"currency_code":"USD","in_stock":true},{"title":"150 × 150 × 150 mm \/ Pallet - 768 Cubes","offer_id":48075421450497,"sku":null,"price":1920.0,"currency_code":"USD","in_stock":true},{"title":"150 × 150 × 100 mm \/ Pallet - 1280 Cubes","offer_id":48075421483265,"sku":null,"price":2880.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/2860\/0065\/files\/6x6x6-cultiwool-block_87a00671-60d3-4ea0-87f5-e50bf598ebb3.jpg?v=1771129972"},{"product_id":"35mm-cultiwool-rockwool-propagation-plugs","title":"Cultiwool Rockwool Propagation Plugs – 35 mm","description":"\u003cp\u003e\u003cstrong\u003ePallet delivery:\u003c\/strong\u003e Pallet orders require a freight quote and cannot be completed through standard online checkout. Contact 454 Bags before ordering a pallet to confirm delivery arrangements and the total shipping cost.\u003c\/p\u003e\u003ch2\u003eRockwool rooting plugs for seeds and cuttings\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eCultiwool 35 mm rockwool propagation plugs\u003c\/strong\u003e provide a consistent growing medium for commercial seed and cutting propagation. Pre-formed planting holes make placement straightforward across large batches.\u003c\/p\u003e\u003cp\u003eThe stone wool structure supports moisture retention and air availability around the developing root zone. Rooted plugs can then move into a suitable larger block or growing system.\u003c\/p\u003e\u003ch3\u003ePallet specifications\u003c\/h3\u003e\u003cul\u003e\u003cli\u003ePlug size: 35 mm class.\u003c\/li\u003e\u003cli\u003ePlugs per sheet: 84.\u003c\/li\u003e\u003cli\u003eSheets per pallet: 375.\u003c\/li\u003e\u003cli\u003eTotal plugs per pallet: 31,500.\u003c\/li\u003e\u003cli\u003eMaterial: stone wool, also known as rockwool.\u003c\/li\u003e\u003cli\u003eApplications: seed starting, rooting cuttings and hydroponic propagation.\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003ePlan your propagation supply\u003c\/h3\u003e\u003cp\u003eThis listing is for the pallet format shown in the selector. Prepare and irrigate the plugs according to your crop and nutrient programme, then transplant when roots are ready.\u003c\/p\u003e\u003ch3\u003eUK freight quotation\u003c\/h3\u003e\u003cp\u003ePallets are dispatched from the United States. Contact 454 Bags with your delivery requirements before ordering so we can confirm freight arrangements and the total shipping cost.\u003c\/p\u003e","brand":"Cultiwool","offers":[{"title":"Pallet — 375 Sheets \/ 31500","offer_id":48075421679873,"sku":null,"price":4999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/2860\/0065\/files\/cultiwool-84-plug-sheet-rockwool-starter-plugs_48108b88-f67d-421d-9227-c33c5f8dcbea.webp?v=1771129973"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0602\/2860\/0065\/collections\/Cultiwool-logo.png?v=1756456094","url":"https:\/\/454bags.com\/en-gb\/collections\/rockwool.oembed","provider":"454 Bags","version":"1.0","type":"link"}