Grodan Gro-Wool Absorbent Granulate

SKU: HGC713090

90.79 90.79 USD 90.79


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.

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    Grodan Gro-Wool Absorbent Granulate

    If you're growing water hungry plants in containers then Gro-Wool is a good idea.

    Gro-Wool can support house plants while watering just once every 2 to 4 weeks. When growing in clay pellets mix in Gro-Wool to make water and nutrient distribution more uniform and have a moisture buffer in case the pump fails. Gro-Wool also promotes fine root growth which leads to larger more vigorous growth.

    TIP: If you are using a drain-to-waste system, then you do not need to pH condition the Gro-wool. Just fully saturate the wool with a pH 5.5 nutrient solution.


    • On its own as a potting mix.
    • Mix with any potting mix to improve aeration and water holding capacity.
    • Mix water Gro-Wool into your sandy garden soil to improve water holding capacity.