Grodan Rockwool – 4x4x2.5in. Cubes, 6 pack w/holes

Grodan Rockwool – 4x4x2.5in. Cubes, 6 pack w/holes

$ (as of March 29, 2017, 7:39 am)9.95 (as of March 29, 2017, 7:39 am)

hydroponic growing medium
good for seedlings and cuttings

Usually ships in 1-2 business days

Rockwool is an inorganic and sterile growing medium comprised of spun molten rock. An effective medium for rooting cuttings, rockwool supplies 20% air house when saturated, and does no longer contain nutrients. It is strongly recommended that rockwool be conditioned by soaking for eight hours in a pH 5.0-five.5 after which rinsing with pH 7.0 water. Water day by day.
hydroponic growing medium
excellent for seedlings and cuttings

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