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Grodan Rockwool - 4x4x4in. Cubes, 12 pack, w/holes

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Brand: Grodan
Category: Lawn & Patio

Buy New: $13.20

Sales Rank: 51128

Autographed: No
Memorabilia: No

ASIN: B000IXNQIM

Availability: Usually ships in 1-2 business days

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Editorial Reviews:

Product Description
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.