Grodan Granulate Rockwool Absorbent & Repellent

Grodan Gro-Wool Asorbent Granulate 3.5 Cu Ft

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...