Hydrofarm® GROW!T™ Organic Coco Coir Bricks, 3 Pack

100% Peat-Free Renewable Coir Organic and Biodegradable! The environmentally friendly mix for multiple purposes. Natural water retention and drainage capabilities make this premium grade, peat-free coconut coir mix ideal for seed germination or soil amendment. Specially formulated to allow soil to stay cool in hot weather, warmer in cold months and moist all year around. Just add warm water directly over the block and allow to soak. Each block expands to create 2 to 2 1/2 gallons of wetted coir. Each package contains 3 bricks.