Grodan® Gro-Wool™ Absorbent Granulate Timers Made from galvanized steel

Made from galvanized steel

US Patents: D732233

providing optimal horizontal penetration of the crop

and creating these elevated levels in your grow room is simply the easiest way to accelerate plant growth

15 min intervals

Grodan® Gro-Wool™ Absorbent Granulate Timers Made from galvanized steelGrodan Gro Wool Absorbent Granulate This item is available for local pickup only due to oversize. Granulated rockwool works great on its own or mixed with other loose media, such as expanded clay rocks or coconut fiber. If planting in containers outdoors, water absorbent granulate is the best medium of choice. Can be used alone or with other media to customize water retention Retains up to 20 times it's own weight in water