{"title":"Grodan Precision Growing","description":"\u003cp\u003e\u003cspan\u003eGrodan is \u003cstrong\u003estone wool (rockwool) growing media\u003c\/strong\u003e made from melted basalt that’s spun into fibers and formed into plugs, cubes, blocks, and slabs. It’s engineered specifically for \u003cstrong\u003eprecision hydroponics and controlled‑environment agriculture\u003c\/strong\u003e, giving growers extremely consistent root‑zone control. \u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"relative pb-6 w-full after:border-b after:border-stroke-300 after:w-full after:absolute after:mt-3\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch3\u003e🌱 What Grodan Is\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eGrodan is a horticultural substrate made from \u003cstrong\u003ebasalt‑based stone wool\u003c\/strong\u003e, originally introduced as a growing medium in 1969. It’s \u003cstrong\u003einert, sterile, pH‑neutral after conditioning\u003c\/strong\u003e, and designed to hold both water and oxygen in ideal ratios for plant roots. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKey properties:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eExcellent \u003cstrong\u003ewater retention\u003c\/strong\u003e with strong \u003cstrong\u003eair porosity\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eUniform structure\u003c\/strong\u003e for consistent crop performance\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePathogen‑free\u003c\/strong\u003e and non‑decomposing\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHighly \u003cstrong\u003esteerable\u003c\/strong\u003e for precise irrigation strategies\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch3\u003e🌿 How Grodan Is Used\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eGrodan is built around a staged system:\u003c\/span\u003e\u003c\/p\u003e\n\u003col start=\"1\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePlugs\u003c\/strong\u003e → seed germination\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBlocks\u003c\/strong\u003e → young plant development\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSlabs\u003c\/strong\u003e → full‑cycle production\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cspan\u003eThis progression allows roots to colonize each stage efficiently with minimal transplant shock. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt integrates seamlessly with drip irrigation, ebb‑and‑flow, and other hydroponic systems. \u003c\/span\u003e\u003c\/p\u003e","products":[{"product_id":"grodan-improved-gro-block-hugo-6-x-6-x-5-8-case-of-64","title":"Grodan Improved Gro-Block, Hugo 6\" x 6\" x  6\"\", Case of 64","description":"\u003cp\u003e1 Case of 64 blocks each (8 cases for a pallet)\u003c\/p\u003e\n\u003cp\u003eMany other sizes are available!\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eGrodan Improved Hugo (White Foil) 6” x 6” x 5.8” (Case of 64)\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003eLoose in Carton\u003cbr data-mce-fragment=\"1\"\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 data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\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.\u003c\/p\u003e","brand":"BFG","offers":[{"title":"Default Title","offer_id":47743844122910,"sku":"GRD274999","price":184.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/4462\/3134\/files\/RW274999_1.jpg?v=1706721921"},{"product_id":"grodan-gro-block-improved-mini-block-1-5-strip","title":"Grodan Gro Block Improved Mini Block 1.5\" Strip, 1 Case of Qty 2250","description":"\u003cp\u003e\u003cb\u003eGrodan® Improved Gro-Block™ Mini-Blocks™ Strip\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e- 1.5in Mini Blocks - No Holes - 1.5in x 1.5in x 1.5in - Fits Standard 10in x 20in Trays\/Flats - Unwrapped\u003c\/p\u003e\n\u003cdiv\u003eThe Grodan® Improved Gro-Block™ Mini-Blocks™ Strip features uniform density and hydrophilic fibers for consistent water distribution. Strip format supports efficient handling, while center holes allow easy transplanting and root development. Structure supports uniform moisture retention across each unit. Designed for reliable propagation, it supports consistent results.\u003cbr\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold By the Case\u003c\/strong\u003e\u003cbr\u003ePackaging: Unwrapped\u003cbr\u003eBlocks per Strip: 45\u003cbr\u003eStrips per Case: 50\u003cbr\u003eBlocks per Case: 2250\u003c\/li\u003e\n\u003cli\u003e\n\u003cbr\u003e\u003cstrong\u003eProduct Specifications\u003c\/strong\u003e\u003cbr\u003eProduct Type: Mini-Blocks Strip (Improved)\u003cbr\u003eRetail Size: 1.5in Mini Blocks\u003cbr\u003eFeatures: No Holes\u003cbr\u003eDimensions: 1.5in x 1.5in x 1.5in\u003cbr\u003eCompatibility: Fits Standard 10in x 20in Trays\/Flats\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp\u003e\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\u003cp\u003e\u003cstrong\u003e\u003cem\u003eNote: This item is for commercial use and is packaged as bulk, without retail wrapping or labeling.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"BFG","offers":[{"title":"Default Title","offer_id":49257376678174,"sku":"GRD294713","price":371.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/4462\/3134\/files\/GrodanMini2.jpg?v=1748551379"},{"product_id":"grodan-gro-block-improved-jumbo-6-x-6-x-4-w-hole","title":"Grodan Gro-Block Improved Jumbo, 6\" x 6\" x 4\" w\/Hole(704 Loose)","description":"\u003cdiv class=\"full-description-section product-section\"\u003e\n\u003ch2 id=\"productDetails\" class=\"product-header font-weight-bold\"\u003eProduct Details\u003c\/h2\u003e\n\u003cstrong\u003eGrodan Improved Jumbo (White Foil) 6” x 6” x 4” (quantity 704 blocks, loose on a pallet)\u003cbr\u003e\u003c\/strong\u003e\u003cbr\u003eGrodan Improved\u003cbr\u003e\u003cbr\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 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\/div\u003e\n\u003cdiv class=\"specification-section product-section\"\u003e\n\u003ch2 id=\"specifications\" class=\"product-header font-weight-bold\"\u003e\u003cbr\u003e\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"BFG","offers":[{"title":"Default Title","offer_id":49257389424926,"sku":"GRD327710","price":1262.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/4462\/3134\/files\/RW327710_1.jpg?v=1728929533"},{"product_id":"grodan®-macroplugs™-1-5in-plugs-pre-cut-side-slit-1-5in-round-x-1-57in-loose","title":"Grodan® Macroplugs™ - 1.5in Plugs - Pre-Cut Side Slit - 1.5in Round x 1.57in - Loose","description":"\u003cp\u003e\u003cb\u003eGrodan® Macroplugs™\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e1 Case (1750 Plugs)- 1.5in Plugs - Pre-Cut Side Slit - 1.5in Round x 1.57in - Loose\u003c\/p\u003e\n\u003cdiv\u003eThe Grodan® Macroplugs™ are round stonewool plugs designed for cloning and propagation. Fit Grodan® block holes and provide aeration and moisture balance, with a slit design for easy clone insertion and root development. Structure supports consistent moisture retention. Designed for uniform results, they support reliable propagation success.\u003cbr\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold By the Case\u003c\/strong\u003e\u003cbr\u003ePackaging: Loose\u003cbr\u003ePlugs per Case: 1750\u003c\/li\u003e\n\u003cli\u003e\n\u003cbr\u003e\u003cstrong\u003eProduct Specifications\u003c\/strong\u003e\u003cbr\u003eProduct Type: Macroplugs\u003cbr\u003eRetail Size: 1.5in Plugs\u003cbr\u003eFeatures: Pre-Cut Side Slit\u003cbr\u003eDimensions: 1.5in Round x 1.57in\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"BFG","offers":[{"title":"Default Title","offer_id":51832645255454,"sku":"B0714691","price":291.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/4462\/3134\/files\/GRD31581.jpg?v=1778515358"},{"product_id":"grodan®-improved-gro-block™-6in-block-jumbo-pre-cut-holes-6in-x-6in-x-4in-loose","title":"Grodan® Improved Gro-Block™ - 6in Block (Jumbo) - Pre-Cut Holes - 6in x 6in x 4in - Loose","description":"\u003cp\u003e\u003cb\u003eGrodan® Improved Gro-Block™\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 Case 64 Blocks each  6in Block (Jumbo) - Pre-Cut Holes - 6in x 6in x 4in - Loose\u003c\/li\u003e\n\u003cli\u003ePallet price available at a discount: 12 cases per pallet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003eThe Grodan® Improved Gro-Block™ uses hydrophilic fibers and controlled density to promote even water distribution and strong root development. Compatible with plugs for transplanting and suited for automated hydroponic systems. Structure supports uniform nutrient availability across the block. Designed for consistency, it supports reliable crop performance.\u003cbr\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold By the Case\u003c\/strong\u003e\u003cbr\u003ePackaging: Loose\u003cbr\u003eBlocks per Case: 64\u003c\/li\u003e\n\u003cli\u003e\n\u003cbr\u003e\u003cstrong\u003eProduct Specifications\u003c\/strong\u003e\u003cbr\u003eProduct Type: Gro-Block (Improved)\u003cbr\u003eRetail Size: 6in Block (Jumbo)\u003cbr\u003eFeatures: Pre-Cut Holes\u003cbr\u003eDimensions: 6in x 6in x 4in\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"BFG","offers":[{"title":"Default Title","offer_id":51832678318366,"sku":"286613","price":139.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/4462\/3134\/files\/GRD286613.jpg?v=1778516304"},{"product_id":"grodan®-gro-wool™-absorbent-stone-wool-granulate-3-5cu-ft","title":"Grodan® Gro-Wool™ Absorbent Stone Wool Granulate - 3.5cu ft","description":"\u003cp\u003e\u003cb\u003eGrodan® Gro-Wool™ Absorbent Stone Wool Granulate\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e- 3.5cu ft (45lb) - Bagged\u003c\/p\u003e\n\u003cdiv\u003eThe Grodan® Gro-Wool™ Absorbent Stone Wool Granulate provides high water retention in a loose fill format for container systems. Can be used alone or blended with other media to support root development and consistent moisture availability. Fine structure supports root hair formation and nutrient uptake. Designed for improved moisture control, it integrates easily into growing mixes.\u003cbr\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold By the Case\u003c\/strong\u003e\u003cbr\u003ePackaging: Bagged\u003cbr\u003eBag per Case: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cbr\u003e\u003cstrong\u003eProduct Specifications\u003c\/strong\u003e\u003cbr\u003eProduct Type: Gro-Wool\u003cbr\u003eRetail Size: 3.5cu ft (45lb)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"BFG","offers":[{"title":"Default Title","offer_id":51832714887454,"sku":"B0714662","price":122.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/4462\/3134\/files\/GRD115848.jpg?v=1778517031"},{"product_id":"grodan®-improved-gr4-gro-block™-strip-3in-block-small-pre-cut-holes-3in-x-3in-x-2-6in-unwrapped","title":"Grodan® Improved GR4 Gro-Block™ Strip - 3in Block (Small) - Pre-Cut Holes - 3in x 3in x 2.6in - Unwrapped","description":"\u003cp\u003e\u003cb\u003eGrodan® Improved GR4 Gro-Block™ Strip\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e- 3in Block (Small) - Pre-Cut Holes - 3in x 3in x 2.6in - Unwrapped\u003c\/p\u003e\n\u003cdiv\u003eThe Grodan® Improved Gro-Block™ Strip uses hydrophilic technology and structured density to support consistent water distribution and root development. Even moisture levels support stable plant growth conditions. Designed for compatibility, it integrates easily into propagation and transplanting systems. Suitable for consistent crop production.\u003cbr\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold By the Case\u003c\/strong\u003e\u003cbr\u003ePackaging: Unwrapped\u003cbr\u003eBlocks per Strip: 8\u003cbr\u003eStrips per Case: 48\u003cbr\u003eBlocks per Case: 384\u003c\/li\u003e\n\u003cli\u003e\n\u003cbr\u003e\u003cstrong\u003eProduct Specifications\u003c\/strong\u003e\u003cbr\u003eProduct Type: Gro-Block Strip (Improved)\u003cbr\u003eRetail Size: 3in Block (Small)\u003cbr\u003eFeatures: Pre-Cut Holes\u003cbr\u003eDimensions: 3in x 3in x 2.6in\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"BFG","offers":[{"title":"Default Title","offer_id":51832733008158,"sku":"287055","price":169.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/4462\/3134\/files\/GRD287055.jpg?v=1778517438"},{"product_id":"grodan®-cress-plate-20in-sheet-no-holes-19-5in-x-9-4in-x-0-4in-unwrapped","title":"Grodan® Cress Plate - 20in Sheet - No Holes - 19.5in x 9.4in x 0.4in - Unwrapped","description":"\u003cp\u003e\u003cb\u003eGrodan® Cress Plate\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e- 20in Sheet - No Holes - 19.5in x 9.4in x 0.4in - Unwrapped\u003c\/p\u003e\n\u003cdiv\u003eThe Grodan® Cress Plate features uniform density for consistent water distribution and even crop growth. Structured design supports quick and reliable germination across the entire surface. Even moisture levels help reduce variability between plants. Designed for efficient production, it supports uniform crop establishment in controlled environments.\u003cbr\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold By the Case\u003c\/strong\u003e\u003cbr\u003ePackaging: Unwrapped\u003cbr\u003ePlates per Case: 95\u003c\/li\u003e\n\u003cli\u003e\n\u003cbr\u003e\u003cstrong\u003eProduct Specifications\u003c\/strong\u003e\u003cbr\u003eProduct Type: Cress Plate\u003cbr\u003eRetail Size: 20in Sheet\u003cbr\u003eFeatures: No Holes\u003cbr\u003eDimensions: 19.5in x 9.4in x 0.4in\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"BFG","offers":[{"title":"Default Title","offer_id":51832746672414,"sku":"B0714666","price":133.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/4462\/3134\/files\/GRD244090.jpg?v=1778517700"},{"product_id":"grodan®-improved-gro-block™-mini-blocks™-strip-1-5in-mini-blocks-no-holes-1-5in-x-1-5in-x-1-5in","title":"Grodan® Improved Gro-Block™ Mini-Blocks™ Strip - 1.5in Mini Blocks - No Holes - 1.5in x 1.5in x 1.5in","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cb\u003eGrodan® Improved Gro-Block™ Mini-Blocks™ Strip\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cb\u003eNot a normally stocked item, limited availability exists\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e- 1.5in Mini Blocks - No Holes - 1.5in x 1.5in x 1.5in - Fits Standard 10in x 20in Trays\/Flats - Shrink Wrapped\u003c\/p\u003e\n\u003cdiv\u003eThe Grodan® Improved Gro-Block™ Mini-Blocks™ Strip features uniform density and hydrophilic fibers for consistent water distribution. Strip format supports efficient handling, while center holes allow easy transplanting and root development. Structure supports uniform moisture retention across each unit. Designed for reliable propagation, it supports consistent results.\u003cbr\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold By the Case\u003c\/strong\u003e\u003cbr\u003ePackaging: Shrink Wrapped\u003cbr\u003eBlocks per Strip: 45\u003cbr\u003eStrips per Case: 50\u003cbr\u003eBlocks per Case: 2250\u003c\/li\u003e\n\u003cli\u003e\n\u003cbr\u003e\u003cstrong\u003eProduct Specifications\u003c\/strong\u003e\u003cbr\u003eProduct Type: Mini-Blocks Strip (Improved)\u003cbr\u003eRetail Size: 1.5in Mini Blocks\u003cbr\u003eFeatures: No Holes\u003cbr\u003eDimensions: 1.5in x 1.5in x 1.5in\u003cbr\u003eCompatibility: Fits Standard 10in x 20in Trays\/Flats\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"BFG","offers":[{"title":"Default Title","offer_id":51832864112926,"sku":"294712","price":406.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/4462\/3134\/files\/GRD294712.jpg?v=1778521616"},{"product_id":"grodan®-improved-gro-block™-6in-block-hugo-pre-cut-holes-6in-x-6in-x-6in-loose","title":"Grodan® Improved Gro-Block™ -1 Pallet (512 Blocks each) 6in Block (Hugo) - Pre-Cut Holes - 6in x 6in x 6in - Loose","description":"\u003ch4\u003eGrodan® Improved Gro-Block™ -1 Pallet (512 Blocks each) 6in Block (Hugo) - Pre-Cut Holes - 6in x 6in x 6in - Loose\u003c\/h4\u003e\n\u003cp\u003e- 6in Block (Hugo) - Pre-Cut Holes - 6in x 6in x 6in - Loose\u003c\/p\u003e\n\u003cdiv\u003eThe Grodan® Improved Gro-Block™ uses hydrophilic fibers and controlled density to promote even water distribution and strong root development. Compatible with plugs for transplanting and suited for automated hydroponic systems. Structure supports uniform nutrient availability across the block. 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Designed for strong root oxygenation, they support consistent growth and can be used alone or blended with other media. Their structure resists compaction during use. 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Supports fast rooting, consistent growth, and controlled irrigation across the crop cycle. Vertical fiber structure promotes even moisture movement. 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