Growing Media
Grodan Grodan Improved Pro MM 40/40 6/15 Plugs, 1.5Inches x 1.5Inches x 1.5Inches, 15 per Strip, Commercial (Pro)
New Grodan Improved! Improved product at current pricing. New density + new hydrophilic technology = better water distribution and root development. The uniform distribution of water and nutrients throughout the block allows for more efficient use of the entire substrate volume Full saturation of the blocks with no dry spots and improved EC control with less water is achieved in the rootzone due to the uniform, optimized wool resulting in a sustainable water and nutrient use. Improved “re-wettability” able to more easily increase water concentration in the substrate.
$4.99$2.99
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Grodan Grodan Pro Improved 10 Block, 4Inches x 4Inches x 4Inches
New Grodan Improved! Improved product at current pricing. New density + new hydrophilic technology = better water distribution and root development. The uniform distribution of water and nutrients throughout the block allows for more efficient use of the entire substrate volume Full saturation of the blocks with no dry spots and improved EC control with less water is achieved in the rootzone due to the uniform, optimized wool resulting in a sustainable water and nutrient use. Improved “re-wettability” able to more easily increase water concentration in the substrate.
$12.49$1.99
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Grodan Grodan Improved Slab 12 in x 3 in x 36 in (8/Cs)
Grodan Improved Gro-Slabs offer a wide control range to steer your crop using irrigation strategies. Featuring the Advanced Wetting Agent, Grodan Improved 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. They can also be resaturated faster and more effectively.
$164.85$18.99
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Grodan Grodan Gro Block Improved GR10 Large 4" w/Hole 4" x 4" x 4" Shrink wrapped/Strip, (case of 144 blocks)
Grodan ImprovedGro Block Improved GR10 Large 4" w/Hole 4" x 4" x 4" Shrink wrapped/StripGrodan 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. These 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. New 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.Optimized 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.
$14.99$11.99
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Grodan Grodan Improved Gro-Block, Hugo 6" x 6" x 5.8", Case of 64
Grodan Improved Hugo (White Foil) 6” x 6” x 5.8” (Case of 64) Grodan ImprovedGrodan 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. These 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.
$4.99$4.75
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Grodan Grodan Improved Jumbo, 6Inches x 6Inches x 4Inches, with hole, case of 64
New Grodan Improved! Improved product at current pricing. New density + new hydrophilic technology = better water distribution and root development. The uniform distribution of water and nutrients throughout the block allows for more efficient use of the entire substrate volume Full saturation of the blocks with no dry spots and improved EC control with less water is achieved in the rootzone due to the uniform, optimized wool resulting in a sustainable water and nutrient use. Improved “re-wettability” able to more easily increase water concentration in the substrate.
$226.96$215.61
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Grodan Grodan Stonewool Grow-Chunks 2 cu ft (3/Cs)
Light, airy and versatile. Grow-Chunks™ are about 3/4 in square each and can be used in pots, around blocks or alone. They are easily combined with other media, such as layering with coco fiber or clay pellets. They can also be combined with soil for added aeration and increased moisture-holding properties. Great for hydro systems or container gardening.
$188.74$179.30
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Grodan Grodan Grow-Cubes Bulk Loose Box 5.7 cu ft
Grow-Cubes™ are small loose 1/2 in cubes of stonewool. Advantages are better aeration, maximum drainage so that you can hardly ever overwater your plant, easy mixing with other loose media (such as expanded clay rocks or coconut fiber), lightweight and much cleaner than peat-based media. The properties of Grow-Cubes™ make it like a 50/50 mix of absorbent to repellent stonewool.
$155.24$147.48
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Grodan Grodan Grow-Cubes Large 2 cu ft (3/Cs)
Grow-Cubes™ are small loose 1/2 in cubes of stonewool. Advantages are better aeration, maximum drainage so that you can hardly ever overwater your plant, easy mixing with other loose media (such as expanded clay rocks or coconut fiber), lightweight and much cleaner than peat-based media. The properties of Grow-Cubes™ make it like a 50/50 mix of absorbent to repellent stonewool.
$188.74$179.30
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Grodan Grodan Improved Hugo, 6Inches x 6Inches x 6Inches, 512 blocks loose on pallet
New Grodan Improved! Improved product at current pricing. New density + new hydrophilic technology = better water distribution and root development. The uniform distribution of water and nutrients throughout the block allows for more efficient use of the entire substrate volume Full saturation of the blocks with no dry spots and improved EC control with less water is achieved in the rootzone due to the uniform, optimized wool resulting in a sustainable water and nutrient use. Improved “re-wettability” able to more easily increase water concentration in the substrate.
$1,979.25$1,880.29
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Grodan Grodan Gro-Wool Absorbent Granulate
Granulated rockwool works great on its own or mixed with other loose media, such as expanded clay rocks or coconut fiber. If planting in containers outdoors, water absorbent granulate is the best medium of choice.
$108.94$103.49
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Grodan Grodan Improved Hugo, 6' x 6Inches x 6Inches, case 64
New Grodan Improved! Improved product at current pricing. New density + new hydrophilic technology = better water distribution and root development. The uniform distribution of water and nutrients throughout the block allows for more efficient use of the entire substrate volume Full saturation of the blocks with no dry spots and improved EC control with less water is achieved in the rootzone due to the uniform, optimized wool resulting in a sustainable water and nutrient use. Improved “re-wettability” able to more easily increase water concentration in the substrate.
$320.72$304.68