Rockwool

Grodan Stonewool is a proven hydroponics growing medium preferred by garden enthusiasts everywhere. This 36" x 6" x 4" Delta Slab is perfect for "blocking on" smaller stonewool cubes and blocks to accommodate the final stages of plant growth. Slabs...

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...

The ideal growing media for seed starts, microgreens, baby leaf crops, and more. Thinnest Grodan available. 10 x 20 inch mats fits in most propagation trays. Consistent structure results in quick and easy germination. The uniform density allows for equal...

Pargro is the leader among affordable horticultural rockwool. Made right in the Grodan factory, so you can be assured of a high quality product at a great price. Drainage Driest value-priced rockwool on the market 14% drier than competitor's...