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Grodan

Grodan

At Grodan we supply innovative and sustainable stone wool growing media solutions for the professional horticultural sector, based on Precision Growing principles. Our products include: Grodan Stonewool, Grodan grow cubes, Grodan macroplugs, Grodan trays and much more. These solutions are, amongst others, applied for the cultivation of vegetables and flowers, such as tomatoes, cucumbers, sweet peppers, egg plants, roses and gerberas. 

Sustainability plays a prominent role within Grodan, from the manufacture of stone wool substrates to end-of-life solutions. Grodan is founded in 1969 and active in more than seventy countries worldwide. The head office is located in Roermond, the Netherlands. 

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Gro Block Improved Medium 4Inches GR7,5 w/ hole (4Inchesx4Inches3.1Inches) wrapped (6/strip- 32 strips per cs) 192 per case
Gro Block Improved Medium 4Inches GR7,5 w/ hole (4Inchesx4Inches3.1Inches) wrapped (6/strip- 32 strips per cs) 192 per case
Out of stock
10 days
HGC713017
Brand: Grodan
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.
$28521
Gro-Block Improved Uni-Block 8 in x8 in x4 in, No hole, (36/Cs)
Out of stock
10 days
HGC713022
Brand: Grodan
The Grodan Improved Uni-Block was designed as the ideal stacking block, giving you more choice in your growing configuration. It was developed specifically for larger plants, to increase yields, with a solid base for top-heavy plants. The Uni-Block has excellent water holding capacity and provides a larger substrate volume for extra root growth. 8"x8"x4" block (case/36).
$16335
Grodan A-OK 25/40 - 1 in x 1 in Plugs (200/Sheet) (30 Sheets/Cs)
Out of stock
10 days
HGC713020
Brand: Grodan
A-OK Starter Plugs for starting seeds and rooting of cuttings prior to plugging into the larger Gro-Blocks. A-OK Starter Plugs come labeled with instructions in a shrink-wrapped sheet that fits a standard 10 x 20 tray (flat). Note: Item #713020 is supplied without shrink wrap.
$58626
Grodan A-OK Starter Plug, 36/40, 1.5 inch plugs, each sheet shrink wrapped (98 plugs/Sheet) (30 Sheets/Cs)
Grodan A-OK Starter Plug, 36/40, 1.5 inch plugs, each sheet shrink wrapped (98 plugs/Sheet) (30 Sheets/Cs)
Out of stock
10 days
HGC713025
Brand: Grodan
A-OK Starter Plugs for starting seeds and rooting of cuttings prior to plugging into the larger Gro-Blocks. A-OK Starter Plugs come labeled with instructions in a shrink-wrapped sheet that fits a standard 10 x 20 tray (flat). Note: Item #713020 is supplied without shrink wrap.
$53037
Grodan A-OK Starter Plug, 50/40, 2 inch plugs, each sheet shrink wrapped (50 plugs/Sheet) (30 Sheets/Cs)
Grodan A-OK Starter Plug, 50/40, 2 inch plugs, each sheet shrink wrapped (50 plugs/Sheet) (30 Sheets/Cs)
Out of stock
10 days
HGC713030
Brand: Grodan
A-OK Starter Plugs for starting seeds and rooting of cuttings prior to plugging into the larger Gro-Blocks. A-OK Starter Plugs come labeled with instructions in a shrink-wrapped sheet that fits a standard 10 x 20 tray (flat). Note: Item #713020 is supplied without shrink wrap.
$46368
Grodan Delta Big Mama Block 8 in x 8 in x 8 in (18CT)
Grodan Delta Big Mama Block 8 in x 8 in x 8 in (18CT)
Out of stock
10 days
HGC713088
Brand: Grodan
Gro-Blocks are similar to a plant container. Need a 3 in pot? Then choose a 3 in Gro-Block. Small plants can be fully grown in our larger Gro-Blocks. Holes are perfect size for any 1.5 in starter plug. Come in packs labeled with instructions. Big Mama is Grodan's largest block ever produced! Big enough to grow a large plant for its entire life. More than twice the amount of wool as our Hugo Block.
$16007
Grodan Expert Fat Slabs 15/100 6 in x 4 in x 36 in (12/Cs)
Out of stock
10 days
HGC713001
Brand: Grodan
Gro-Slabs provide the final stage for growing a spectacularly large plant. Transplant your Gro-Block plant onto a slab just like professional growers. They come in clearly marked biodegradable UV-resistant sleeves for comfortable handling and algae prevention. With the Uni-Slab, all plant roots are protected and contained for the life of the plant. Due to its size, the Uni-Slab is perfect for one large plant. Uni-Slab has the benefits of a slab with the versatility of a block. All Gro-Slabs have vertical fibers except the 12 in Gro-Slab, which has horizontal fibers.
$13581
Grodan Expert Slab 15/75 6 in x 3 in x 36 in (12/Cs)
Out of stock
10 days
HGC713005
Brand: Grodan
Gro-Slabs provide the final stage for growing a spectacularly large plant. Transplant your Gro-Block plant onto a slab just like professional growers. They come in clearly marked biodegradable UV-resistant sleeves for comfortable handling and algae prevention. With the Uni-Slab, all plant roots are protected and contained for the life of the plant. Due to its size, the Uni-Slab is perfect for one large plant. Uni-Slab has the benefits of a slab with the versatility of a block. All Gro-Slabs have vertical fibers except the 12 in Gro-Slab, which has horizontal fibers.
$10188
Grodan Expert Slab 20/75 8 in x 3 in x 36 in (12/Cs)
Out of stock
10 days
HGC713010
Brand: Grodan
Gro-Slabs provide the final stage for growing a spectacularly large plant. Transplant your Gro-Block plant onto a slab just like professional growers. They come in clearly marked biodegradable UV-resistant sleeves for comfortable handling and algae prevention. With the Uni-Slab, all plant roots are protected and contained for the life of the plant. Due to its size, the Uni-Slab is perfect for one large plant. Uni-Slab has the benefits of a slab with the versatility of a block. All Gro-Slabs have vertical fibers except the 12 in Gro-Slab, which has horizontal fibers.
$20506
Grodan Gro-Smart Tray Insert (5/Cs)
Grodan Gro-Smart Tray Insert (5/Cs)
In stock
10 days
HGC707445
Brand: Grodan
Your Grodan Starter plugs, Mini-Blocks and Gro-Blocks have finally found a home. This durable Dutch tray has double-sided features. Use the 78-cell side to perfectly fit 1.5 in A-OK Starter Plugs or round Macroplugs. Use the mesh side for sheets of A-OK's, Mini-Blocks, or Gro-Blocks. The tray fits in a standard 10 x 20 flat and keeps the Grodan elevated from the bottom of the flat. Easily sanitize as any hard-plastic product; even dish-washer safe! This terra-cotta colored tray was designed by Grodan and is exclusively manufactured for the Grodan company.
$1088
Grodan Gro-Wool Absorbent Granulate
Grodan Gro-Wool Absorbent Granulate
Out of stock
10 days
HGC713090
Brand: Grodan
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.
$8359
Grodan Grow-Cubes Bulk Loose Box 5.7 cu ft
Grodan Grow-Cubes Bulk Loose Box 5.7 cu ft
Out of stock
10 days
HGC713105
Brand: Grodan
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.
$11919
Grodan Grow-Cubes Large 2 cu ft (3/Cs)
Grodan Grow-Cubes Large 2 cu ft (3/Cs)
Out of stock
10 days
HGC713095
Brand: Grodan
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.
$14490
Grodan Improved 4 Block, 3Inches x 3Inches x 2.5Inches with hole, shrink wrapped, on strip, case of 384
Out of stock
10 days
HGC713009
Brand: Grodan
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.
$29751
Grodan Improved 4 Block, 3Inches x 3Inches x 2.5Inches, no hole, shrink wrapped, on strip, case of 384
Grodan Improved 4 Block, 3Inches x 3Inches x 2.5Inches, no hole, shrink wrapped, on strip, case of 384
Out of stock
10 days
HGC713008
Brand: Grodan
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.
$29753
Grodan Improved 5.6 Block, 3Inches x 3Inches x 4Inches, on strip, case of 256
Out of stock
10 days
HGC713012
Brand: Grodan
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.
$29745
Grodan Improved 6.5 Block, 4Inches x 4Inches x 2.5Inches, on strip, case of 216
Out of stock
10 days
HGC713016
Brand: Grodan
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.
$23161
Grodan Improved Big Mama Block 8 in x 8 in x 8 in (18CT)
Out of stock
10 days
HGC713023
Brand: Grodan
The Grodan Improved Big Mama is the largest block available. With more than twice the volume of a Hugo block, it is capable of supporting large plants through the end of the life cycle. The Improved technology allows for better re-saturation and balanced water distribution over the height of the block, allowing the roots to fill the entire volume of the media.
$16007
Grodan Improved Hugo, 6' x 6Inches x 6Inches, case 64
Grodan Improved Hugo, 6' x 6Inches x 6Inches, case 64
Out of stock
10 days
HGC713087
Brand: Grodan
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.
$24627
Grodan Improved Hugo, 6Inches x 6Inches x 6Inches, 512 blocks loose on pallet
Grodan Improved Hugo, 6Inches x 6Inches x 6Inches, 512 blocks loose on pallet
Out of stock
10 days
HGC713091
Brand: Grodan
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.
$1,67262
Grodan Improved Jumbo, 6Inches x 6Inches x 4Inches, with hole, case of 64
Grodan Improved Jumbo, 6Inches x 6Inches x 4Inches, with hole, case of 64
Out of stock
10 days
HGC713255
Brand: Grodan
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.
$17428
Grodan Improved MM 40/40 6/15 Plugs, 1.5Inches x 1.5Inches x 1.5Inches, 15 per strip, 3 strips per pack, shrink wrapped
Out of stock
10 days
HGC713004
Brand: Grodan
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.
$51713
Grodan Improved MM50/40 6/15 Block, 2Inches x 2Inches x 1.5Inches, 60 strips of 24, shrink wrapped
Out of stock
10 days
HGC713006
Brand: Grodan
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.
$46746
Grodan Improved Pro MM 40/40 6/15 Plugs, 1.5Inches x 1.5Inches x 1.5Inches, 2250 per box, Commercial (Pro)
Out of stock
10 days
HGC713003
Brand: Grodan
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.
$41081
Grodan Improved Slab 12 in x 3 in x 36 in (8/Cs)
Grodan Improved Slab 12 in x 3 in x 36 in (8/Cs)
Out of stock
10 days
HGC713032
Brand: Grodan
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.
$11651
Grodan Improved Slab 6 in x 3 in x 36 in (12/Cs)
Grodan Improved Slab 6 in x 3 in x 36 in (12/Cs)
Out of stock
10 days
HGC713028
Brand: Grodan
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.
$10188
Grodan Improved Slab 6 in x 4 in x 36 in (12/Cs)
Grodan Improved Slab 6 in x 4 in x 36 in (12/Cs)
Out of stock
10 days
HGC713027
Brand: Grodan
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.
$13581
Grodan Improved Slab 8 in x 3 in x 36 in (12/Cs)
Grodan Improved Slab 8 in x 3 in x 36 in (12/Cs)
Out of stock
10 days
HGC713029
Brand: Grodan
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.
$13179
Grodan Improved Uni-Slab 9.5 in x 8 in x 4 in (16/Cs)
Out of stock
10 days
HGC713024
Brand: Grodan
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.
$9888
Grodan MacroPlug Round w/ Slit (50/Bag) (35 Bags/Cs)
Grodan MacroPlug Round w/ Slit (50/Bag) (35 Bags/Cs)
Out of stock
10 days
HGC713038
Brand: Grodan
MacroPlugs are 1.5 in 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, always insert MacroPlugs in a tray with individual cells. The individual cell will make sure the plug stays closed around the stem of your cutting.
$34251
Grodan MacroPlug Round w/ Slit Bulk (2000/Cs)
Grodan MacroPlug Round w/ Slit Bulk (2000/Cs)
Out of stock
10 days
HGC713035
Brand: Grodan
MacroPlugs are 1.5 in 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, always insert MacroPlugs in a tray with individual cells. The individual cell will make sure the plug stays closed around the stem of your cutting.
$36337
Grodan Pargro QD 4 in x 4 in Block (72) w/ Hole (12/Cs)
Grodan Pargro QD 4 in x 4 in Block (72) w/ Hole (12/Cs)
Out of stock
10 days
HGC713230
Brand: Grodan
Same quality, same value-priced, half-sized cases. Driest value-priced rockwool on the market. Made at the Grodan factories. Plain brown half-case sizes. Better quality and drainage than other value-priced rockwool.
$8751
Grodan Pargro QD 6 in x 36 in Slab (12/Cs)
Grodan Pargro QD 6 in x 36 in Slab (12/Cs)
Out of stock
10 days
HGC713235
Brand: Grodan
Same quality, same value-priced, half-sized cases. Driest value-priced rockwool on the market. Made at the Grodan factories. Plain brown half-case sizes. Better quality and drainage than other value-priced rockwool.
$9299
Grodan Pargro QD Biggie Block 6 in x 6 in x 6in w/ Hole (64CT)
Grodan Pargro QD Biggie Block 6 in x 6 in x 6in w/ Hole (64CT)
Out of stock
10 days
HGC713259
Brand: Grodan
Same quality, same value-priced, half-sized cases. Driest value-priced rockwool on the market. Made at the Grodan factories. Plain brown half-case sizes. Better quality and drainage than other value-priced rockwool.
$22705
Grodan Pargro QD Jumbo Block 6 in x 6 in x 4 in w/ Hole (64/Cs)
Grodan Pargro QD Jumbo Block 6 in x 6 in x 4 in w/ Hole (64/Cs)
Out of stock
10 days
HGC713251
Brand: Grodan
Same quality, same value-priced, half-sized cases. Driest value-priced rockwool on the market. Made at the Grodan factories. Plain brown half-case sizes. Better quality and drainage than other value-priced rockwool.
$14821
Grodan PRO A-OK Starter Plug, 36/40, 1.5 inch plugs, sheets loose in case, unwrapped (98 plugs/Sheet) (30 Sheets/Cs)
Grodan PRO A-OK Starter Plug, 36/40, 1.5 inch plugs, sheets loose in case, unwrapped (98 plugs/Sheet) (30 Sheets/Cs)
Out of stock
10 days
HGC713026
Brand: Grodan
A-OK Starter Plugs for starting seeds and rooting of cuttings prior to plugging into the larger Gro-Blocks. A-OK Starter Plugs come labeled with instructions in a shrink-wrapped sheet that fits a standard 10 x 20 tray (flat). Note: Item #713020 is supplied without shrink wrap.
$38177
Grodan PRO A-OK Starter Plug, 50/40, 2 inch plugs, sheets loose in case, unwrapped (50 plugs/Sheet) (30 Sheets/Cs)
Grodan PRO A-OK Starter Plug, 50/40, 2 inch plugs, sheets loose in case, unwrapped (50 plugs/Sheet) (30 Sheets/Cs)
Out of stock
10 days
HGC713031
Brand: Grodan
A-OK Starter Plugs for starting seeds and rooting of cuttings prior to plugging into the larger Gro-Blocks. A-OK Starter Plugs come labeled with instructions in a shrink-wrapped sheet that fits a standard 10 x 20 tray (flat). Note: Item #713020 is supplied without shrink wrap.
$35588
Grodan Pro Improved 10 Block, 4Inches x 4Inches x 4Inches, on strip with hole, case of 144, Commercial
Grodan Pro Improved 10 Block, 4Inches x 4Inches x 4Inches, on strip with hole, case of 144, Commercial
Out of stock
10 days
HGC713019
Brand: Grodan
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.
$16479
Grodan Pro Improved 10 Block, 4Inches x 4Inches x 4Inches, shrinkwrap on strip with hole, case of 144
Out of stock
10 days
HGC713021
Brand: Grodan
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.
$25235
Grodan Pro Improved 10, 4Inches x 4Inches x 4Inches, 1,548 blocks loose on pallet
Grodan Pro Improved 10, 4Inches x 4Inches x 4Inches, 1,548 blocks loose on pallet
Out of stock
10 days
HGC713083
Brand: Grodan
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.
$1,50251
Grodan Pro Improved 4 Block, 3Inches x 3Inches x 2.5Inches with hole, on strip, case of 384, Commercial
Out of stock
10 days
HGC713007
Brand: Grodan
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.
$20911
Grodan Pro Improved 6.5 Block, 4Inches x 4Inches x 2.5Inches, case of 216, Commercial
Grodan Pro Improved 6.5 Block, 4Inches x 4Inches x 2.5Inches, case of 216, Commercial
Out of stock
10 days
HGC713013
Brand: Grodan
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.
$15969
Grodan Stonewool Grow-Chunks 2 cu ft (3/Cs)
Grodan Stonewool Grow-Chunks 2 cu ft (3/Cs)
Out of stock
10 days
HGC713108
Brand: Grodan
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.
$14490