{"title":"Grodan","description":"\u003cp\u003eGrodan is the global benchmark in mineral wool growing media, trusted by commercial growers and serious hobbyists worldwide. Their rockwool products are spun from natural basalt and limestone into a precision-engineered fibre structure that delivers the optimal air-to-water ratio at the root zone — the single most important factor in consistent, vigorous plant growth. Inert, pH-stable, and free from contaminants, Grodan media works with your nutrient solution rather than against it, across every stage of growth.\u003c\/p\u003e\u003ch2\u003e🌱 Rockwool Propagation Cubes\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eGrodan MM PM 40\/40 Wrapped Propagation Cube\u003c\/strong\u003e is the industry-standard 40mm cube for seeds and cuttings, featuring a pre-formed seeding hole, downward root-directing fibre orientation, and universal compatibility with hydroponic, coco, soil, aero, and DWC systems, available in a 12-pack. For growers needing a larger propagation cube, the \u003cstrong\u003eGrodan Delta 4G 75mm Wrapped Cube\u003c\/strong\u003e offers a no-hole design suited to multiple planting methods, individually wrapped for easy handling, available in a 6-pack.\u003c\/p\u003e\u003ch2\u003e🧱 Full-Cycle Grow Blocks\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eGrodan Hugo Grow Wool Block\u003c\/strong\u003e is a 150mm x 150mm x 150mm large-format block engineered to take a plant from transplant all the way through to harvest without switching media. Built for high-frequency fertigation and run-to-waste systems, it maintains the air-to-water balance through frequent watering cycles and is compatible with Netafim Netbow feeding rings.\u003c\/p\u003e\u003ch2\u003e💡 Why Grodan?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlobal benchmark in rockwool\u003c\/strong\u003e : trusted by commercial growers and research facilities worldwide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpun from natural basalt and limestone\u003c\/strong\u003e : inert, pH-stable, and consistent cube to cube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimal air-to-water ratio\u003c\/strong\u003e : engineered fibre structure keeps oxygen available at the root zone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSterile and contaminant-free\u003c\/strong\u003e : won't interfere with your nutrient solution or pH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWrapped for stability\u003c\/strong\u003e : outer wrap maintains cube shape during handling and transplanting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible with all major hydroponic systems\u003c\/strong\u003e : NFT, DWC, drip, flood and drain, run-to-waste, aero, coco, and soil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuits home and commercial growers\u003c\/strong\u003e : consistent quality at every scale\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eShop the full Grodan range at Growers Depot with more products and categories to explore.\u003c\/p\u003e","products":[{"product_id":"grodan-delta-4g-rockwool-cube-75mm-wrapped-no-hole-6pk","title":"Grodan Delta 4G Rockwool Cube 75mm x 75mm Wrapped | No Hole | 6 Pack","description":"\u003ch2\u003ePremium Rockwool Cubes for Stronger Roots \u0026amp; Faster Growth\u003c\/h2\u003e\u003cp\u003eWhen your growing medium gets the air-to-water balance right, everything else follows. The \u003cstrong\u003eGrodan Delta 4G 75mm Wrapped Cube\u003c\/strong\u003e is engineered from spun basalt and limestone mineral wool to deliver exactly that — consistent moisture retention, excellent aeration, and a stable root zone that gives your plants the best possible start.\u003c\/p\u003e\u003cp\u003eThis listing is for a \u003cstrong\u003e6-pack of individually wrapped 75mm x 75mm cubes (no hole)\u003c\/strong\u003e — ready to use straight out of the pack for seeds, cuttings, or transplants.\u003c\/p\u003e\u003ch3\u003eWhy Growers Choose Grodan Delta 4G\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimal air-to-water ratio\u003c\/strong\u003e — mineral wool structure holds moisture while keeping oxygen available at the root zone, driving uniform development across the whole cube.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpun from basalt \u0026amp; limestone\u003c\/strong\u003e — inert, pH-stable growing medium that won’t interfere with your nutrient solution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWrapped for stability\u003c\/strong\u003e — the outer wrap holds the cube shape during handling and transplanting, reducing root disturbance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo hole design\u003c\/strong\u003e — flexible for multiple planting methods; use with seeds, cuttings, or place directly onto slabs or larger rockwool cubes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndividually packaged\u003c\/strong\u003e — easy to handle, store, and use one at a time without contaminating the rest of the pack.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuits commercial \u0026amp; home growers\u003c\/strong\u003e — consistent quality cube to cube, grow to grow.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHow to Use\u003c\/h3\u003e\u003cp\u003eSoak cubes in pH-adjusted water (5.5–6.0) before use. Place your seed or cutting, then position the cube in your system. These cubes sit perfectly on top of Grodan slabs or larger rockwool blocks as part of a multi-stage propagation setup.\u003c\/p\u003e\u003ch3\u003eSpecs\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSize: \u003cstrong\u003e75mm x 75mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ePack size: \u003cstrong\u003e6 cubes\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eMaterial: \u003cstrong\u003eMineral wool (basalt \u0026amp; limestone)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eHole: \u003cstrong\u003eNo hole\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eWrapping: \u003cstrong\u003eYes — individually wrapped\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eUse: \u003cstrong\u003eSeeds, cuttings, transplants\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePerfect For\u003c\/h3\u003e\u003cp\u003eHydroponic growers running NFT, DWC, drip, or flood-and-drain systems who want a reliable, consistent propagation medium from a trusted brand. Grodan is the global benchmark in rockwool — and the Delta 4G is their go-to cube for propagation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIn stock and ready to ship.\u003c\/strong\u003e Add to cart and get your next grow started right.\u003c\/p\u003e","brand":"Grodan","offers":[{"title":"Default Title","offer_id":48235678433494,"sku":null,"price":12.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6097\/9158\/files\/warm-greenhouse-morning-light.webp?v=1778433524"},{"product_id":"grodan-hugo-grow-wool-block-150x150x150mm","title":"Grodan Hugo Grow Wool Block 150mm x 150mm x 150mm | Full Cycle Rockwool Block","description":"\u003ch2\u003eOne Block. Full Cycle. Zero Compromises.\u003c\/h2\u003e\u003cp\u003eMost growing media are built for one stage. The \u003cstrong\u003eGrodan Hugo Grow Wool Block\u003c\/strong\u003e is built for the whole journey — from transplant through to harvest. At \u003cstrong\u003e150mm x 150mm x 150mm\u003c\/strong\u003e, this large-format grow wool block gives your plant's root system the space it needs to develop fully, while Grodan's precision-engineered mineral wool structure maintains the air-to-water balance that drives consistent, vigorous growth.\u003c\/p\u003e\u003cp\u003eIf you're running a \u003cstrong\u003erun-to-waste or high-frequency fertigation system\u003c\/strong\u003e, this is the block it was designed for.\u003c\/p\u003e\u003ch3\u003eWhy Growers Choose the Grodan Hugo Block\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull plant life-cycle support\u003c\/strong\u003e — large enough to take a plant from transplant to harvest without switching media mid-grow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngineered for high-frequency fertigation\u003c\/strong\u003e — the Hugo's structure handles frequent watering cycles without waterlogging, keeping oxygen available at the root zone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRun-to-waste system ready\u003c\/strong\u003e — designed to work with run-off tray setups in grow rooms and propagation tents.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible with Netafim Netbow feeding rings\u003c\/strong\u003e — drop straight into your existing drip irrigation setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConsistent Grodan quality\u003c\/strong\u003e — uniform density and fibre structure cube to cube, so every plant gets the same environment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple setup\u003c\/strong\u003e — pre-soak, plant, connect your timer and nutrient solution. That's it.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHow to Prepare Your Hugo Block\u003c\/h3\u003e\u003cp\u003eAlways pre-soak the block in a \u003cstrong\u003epH-buffered nutrient solution\u003c\/strong\u003e (target pH 5.5–6.0, EC matched to your crop stage) before planting. This conditions the block to the correct EC and pH, ensuring the root zone is stable and ready to support strong early root development from day one.\u003c\/p\u003e\u003ch3\u003eSpecs\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDimensions: \u003cstrong\u003e150mm x 150mm x 150mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eMedia type: \u003cstrong\u003eGrodan grow wool (mineral wool)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSystem compatibility: \u003cstrong\u003eRun-to-waste, high-frequency drip, NFT, flood \u0026amp; drain\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eFeeding ring compatibility: \u003cstrong\u003eNetafim Netbow\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eLife-cycle use: \u003cstrong\u003eFull cycle — transplant to harvest\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePerfect For\u003c\/h3\u003e\u003cp\u003eIntermediate to advanced hydroponic growers running commercial-style systems who want a large-format, reliable grow medium from the world's most trusted rockwool brand. If you're dialling in a high-frequency drip or run-to-waste setup and need a block that performs consistently run after run, the Hugo delivers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIn stock and ready to ship.\u003c\/strong\u003e Add to cart and grow with confidence.\u003c\/p\u003e","brand":"Grodan","offers":[{"title":"Default Title","offer_id":48235678466262,"sku":null,"price":18.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6097\/9158\/files\/GRODANHUGOBLOCKS150X150MM_1.webp?v=1778433926"},{"product_id":"grodan-mm-pm-40-40-wrapped-rockwool-propagation-cube-12pk","title":"Grodan MM PM 40\/40 Wrapped Rockwool Propagation Cube 40mm | 12 Pack","description":"\u003ch2\u003eThe Propagation Cube That Gets Cuttings \u0026amp; Seeds Off to the Right Start\u003c\/h2\u003e\u003cp\u003ePropagation is where grows are won or lost. Give your seeds and cuttings the best possible foundation with the \u003cstrong\u003eGrodan MM PM 40\/40 Wrapped Rockwool Propagation Cube\u003c\/strong\u003e — a compact, precision-engineered 40mm cube designed to drive downward root development, maintain the ideal air-to-water ratio, and integrate seamlessly into any hydroponic or multi-media system.\u003c\/p\u003e\u003cp\u003eThis listing is for a \u003cstrong\u003e12-pack of individually wrapped 40mm x 40mm x 40mm cubes\u003c\/strong\u003e, each with a pre-formed seeding hole — ready to soak and plant straight away.\u003c\/p\u003e\u003ch3\u003eWhy Growers Choose Grodan MM PM 40\/40 Cubes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-formed seeding hole\u003c\/strong\u003e — drop your seed or cutting straight in. No prep, no guesswork.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrives downward root growth\u003c\/strong\u003e — Grodan's fibre orientation encourages roots to grow down and out, producing stronger transplants with better strike rates.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimal air-to-water ratio\u003c\/strong\u003e — mineral wool structure retains moisture while keeping oxygen at the root zone, reducing the risk of root problems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWrapped for stability\u003c\/strong\u003e — outer wrap maintains cube shape during handling and transplanting, minimising root disturbance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSterile \u0026amp; inert\u003c\/strong\u003e — free from unwanted organisms and contaminants. Won't interfere with your nutrient solution or pH.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal compatibility\u003c\/strong\u003e — transplants directly onto Grodan blocks, slabs, coco, soil, or into aero and DWC systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpun from natural basalt \u0026amp; limestone\u003c\/strong\u003e — pH-stable, consistent quality cube to cube.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHow to Use\u003c\/h3\u003e\u003cp\u003ePre-soak cubes in \u003cstrong\u003epH-adjusted water or dilute nutrient solution\u003c\/strong\u003e (pH 5.5–6.0) for 30–60 minutes before use. Place your seed or cutting into the pre-formed hole, then position in your propagation tray or dome. Once roots are visible at the base, transplant directly onto your chosen growing medium — no need to remove the cube.\u003c\/p\u003e\u003ch3\u003eSpecs\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDimensions: \u003cstrong\u003e40mm x 40mm x 40mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ePack size: \u003cstrong\u003e12 cubes\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eMaterial: \u003cstrong\u003eMineral wool (basalt \u0026amp; limestone)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eHole: \u003cstrong\u003eYes — pre-formed seeding hole\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eWrapping: \u003cstrong\u003eYes — individually wrapped\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSystem compatibility: \u003cstrong\u003eHydroponic, soil, coco, aero, DWC\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePerfect For\u003c\/h3\u003e\u003cp\u003eHome growers and commercial propagators who want a reliable, consistent rockwool cube for seeds and cuttings. The 40mm size is the industry standard for propagation — compact enough to fit standard propagation trays and domes, large enough to support healthy root development before transplant.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIn stock and ready to ship.\u003c\/strong\u003e Add to cart and start your next grow strong.\u003c\/p\u003e","brand":"Grodan","offers":[{"title":"Default Title","offer_id":48235678499030,"sku":null,"price":12.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6097\/9158\/files\/GRODANMMPM40-40WRAPPEDPROPAGATIONCUBEEACH_1.webp?v=1778434469"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6097\/9158\/collections\/warm-greenhouse-morning-light.webp?v=1785853321","url":"https:\/\/growersdepot.com.au\/collections\/grodan.oembed","provider":"Growers Depot","version":"1.0","type":"link"}