GROW!T Clay Pebbles 10L 4mm-16mm

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...

Grodan Rockwool 1.5" x 1.5" x 1.5" - 45 Cube Strip MM 40/40 6/15 Block

MM 40/40 6/15 Block, 1.5"x1.5"x1.5", 15 per strip, 3 strips per pack 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...

GROW!T Clay Pebbles 40L 4mm-16mm

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...

Grodan Rockwool 4x4 w/ Hole

Known for its quality, consistency and ease of use, high-performance Grodan stonewool is used by hydroponics gardeners the world over. Seeds or cuttings are started in these larger Grodan Gro-Blocks and, once rooted, the blocks are...

Grodan Rockwool 3 x 3 w/ Hole

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.

Hydroton Original Expanded Clay 50 Liter

The original Hydroton® brand expanded clay is a unique, lightweight expanded clay aggregate made in Germany. This natural clay is mined, formed into pellets, then kiln fired at high temperatures to cause the clay to expand into tough, lightweight...

Hydroton Original Expanded Clay 10 Liter

Strong pebble structure doesn't crush Color packaging 8-16mm pebble size range Measures 16-4/5-inch length by 12-2/3-inch width by 3-2/7-inch height Hydroton grow rocks Strong pebble structure doesn't crush Records high and low points for both...

Grodan Gro-Slab 6" Slab

GRODAN GRO-WOOL, 45 lb

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...

Grodan Grow Chunks 2 cf Bag

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...

Grodan Rockwool 3 x 3 no Hole

Grodan Rockwool 4x4x3 w/ Hole

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.