Hydroponic Media

GROW!T horticultural clay pebbles are made from 100% natural clay. They are clean, pH stable, and offer great aeration and drainage in hydroponics, especially in flood and drain, deep water culture, and drip feed systems. Due to their unique structure...

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...

Grodan Improved Hugo (White Foil) 6” x 6” x 5.8” (Case of 64) Grodan Improved Grodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool...

Granulated rockwool can be used alone or as an amendment to organic based mixes. For example, the addition of water absorbant granulate to peat mixes at 25-50% volume increases water holding capacity and aeration, improving plant growth and shelf life...

 These rockwool plant starting plugs feature a slit for easy insertion of rooted cuttings. Ideal for growers using aeroponic EZ-Clone machines. They fit perfectly into the holes of any standard rockwool blocks, inserted into pebbles, or any other...

 Grodan 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...

 Grodan's A-OK Starter Plugs™ for starting seeds and rooting of cuttings. Shrink Wrapped strip that fits a 10in x 20in tray. 

 Grodan's Improved Gro-Blocks™ utilize improved hydrophilic technology and density for better water distribution and root development. Non-Shrink Wrapped 

Grodan 2" Gro Block. Sold individually.

 This substrate combines the tolerant, organic nature of soil with the precision of rock wool. Due to the special characteristics of the substrate the coco nutrient doesn’t have a Vega and Flores version, but there is one unique formulation for both...

 Product Details Expanded volume: 4.6L Coco peat blend Water holding capacity: 60% Super washed for cleanliness EC < 0.6 - Dutch Method 1:1.5 for balanced nutrient absorption CDFA & OMRI certified organic Heavy metals small batch testing with...

 QuickFill™ organic coco bags come with a pre-drilled center hole for a 40|40 plug or small plant, and two smaller holes for your micro drip stakes, both make expansion and transplanting a breeze. Setup your bags, plug the stakes in the holes,...