Single crop slabVertical fiber orientationInert hydrophilic fibre technologyEasy root penetration for vigorous uniform crop growthExcellent irrigation efficiencyUniform WC distributionHigh re-satuartion capacitySustainable water and nutrient useGrodan Uni-Slabâ„¢ Single Plant Slab can support large plants throughout their lifecycle, allowing greenhouse and indoor growers to realize excellent productio
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 volumeFull 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-wettab
A-OK Starter Plugsâ„¢ for starting seeds and rooting of cuttings prior to plugging into the larger Gro-Blocks. A-OK Starter Plugsâ„¢ 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.
MacroPlugsâ„¢ are 1.5 in round with a slit that allows easy insertion of a cutting. These loose round plugs fit perfectly into the Gro-Blockâ„¢ hole. For best results always insert MacroPlugsâ„¢ in a tray with individual cells. The individual cell will make sure the plug stays closed around the stem of your cutting.
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 volumeFull 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-wettab
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 volumeFull 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-wettab
Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different plant stages. Grodan has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen for rapid plant growth. Grodan comes in gr
"Grodan A-OK 25/40 - 1 inch Starter PlugsThese square size plugs are connected to each other at the top of the plug forming a sheet fitting a 10/20 tray.Grodan plugs are meticulously designed to streamline the growing process
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.
"Grodan Improved Gro-Slabs offer a wide control range to steer your crop using simple irrigation strategies. They can also be resaturated quickly and effectively. The WC and EC are distributed uniformly throughout the slabs. As a result
Grodan MacroPlugsâ„¢ are 1.5 in round with a slit that allows easy insertion of a cutting. These loose round plugs fit perfectly into the Gro-Blockâ„¢ hole. For best results always insert MacroPlugsâ„¢ in a tray with individual cells. The individual cell will make sure the plug stays closed around the stem of your cutting.
"Grodan Improved Gro-Slabs offer a wide control range to steer your crop using simple irrigation strategies. They can also be resaturated quickly and effectively. The WC and EC are distributed uniformly throughout the slabs. As a result
"Grodan A-OK 2 inch Starter Plugsâ„¢ These square size plugs are connected to each other at the top of the plug forming a sheet fitting a 10/20 tray.Grodan plugs are meticulously designed to streamline the growing process
"Grodan Improved Gro-Slabs offer a wide control range to steer your crop using simple irrigation strategies. They can also be resaturated quickly and effectively. The WC and EC are distributed uniformly throughout the slabs. As a result
"Grodan Improved Gro-Slabs offer a wide control range to steer your crop using simple irrigation strategies. They can also be resaturated quickly and effectively. The WC and EC are distributed uniformly throughout the slabs. As a result
Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different plant stages. Grodan has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen for rapid plant growth. Grodan comes in gr
The Grodan® tray comes prefilled with A-OK Starter Plugs™ for fast and easy propagation from seeds or cuttings prior to transplanting to Gro-Blocks™.
Fits perfectly in most standard 10/20 trays.
Designed with a unique and convenient thumb slot to make removal easy and comfortable.
Pre-cut and pre-filled into an insert of 50 1.5"" AO plugs (1.4""x1.4""x1.9"").
Grodan® A-OK Starter Plugs™ for starting seeds and rooting of cuttings prior to plugging into the larger Gro-Blocks™. The plugs come loose in a carton for those who prefer to saturate individually.
Easy to use with propagation trays.
Shipped as individual loose AO plugs (1.4x1.4x1.6) bulk in the carton (2,310).
Single crop slabVertical fiber orientationInert hydrophilic fibre technologyEasy root penetration for vigorous uniform crop growthExcellent irrigation efficiencyUniform WC distributionHigh re-satuartion capacitySustainable water and nutrient useGrodan Uni-Slabâ„¢ Single Plant Slab can support large plants throughout their lifecycle, allowing greenhouse and indoor growers to realize excellent productio
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 1.5in 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 b
Gro-Slabsâ„¢ provide the final stage for growing a spectacularly large plant. Transplant your Gro-Blockâ„¢ 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 ha
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 volumeFull 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-wettab
Gro-Blocksâ„¢ are similar to a plant container. Need a 3 in pot? Then choose a 3 in Gro-Blockâ„¢. Small plants can be fully grown in our larger Gro-Blocksâ„¢. 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.
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 volumeFull 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-wettab
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 volumeFull 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-wettab
A-OK Starter Plugsâ„¢ for starting seeds and rooting of cuttings prior to plugging into the larger Gro-Blocks. A-OK Starter Plugsâ„¢ 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.
A-OK Starter Plugsâ„¢ for starting seeds and rooting of cuttings prior to plugging into the larger Gro-Blocks. A-OK Starter Plugsâ„¢ 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.
A-OK Starter Plugsâ„¢ for starting seeds and rooting of cuttings prior to plugging into the larger Gro-Blocks. A-OK Starter Plugsâ„¢ 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.
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.