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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
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