Price : $9.57
Brand : Grodan

Grodan 2″ x 2″ x 1.5″ Rockwool Blocks – 24 Pack

Rockwool is an inorganic and sterile growing medium made from spun molten rock. A superior medium for rooting cuttings, rockwool provides 20% air space when saturated, and does not contain nutrients. It is recommended that rockwool be conditioned by soaking for eight hours in a pH 5.0-5.5 and then rinsing with pH 7.0 water. Water daily.

 

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