Grodan 2" x 2" x 1.5" Rockwool Blocks - 24 Pack
Feature
- hydroponic growing medium
- good for seedlings and cuttings
Product Detail
- ASIN: B000IXLUJ4
- Item model number:
- Average Customer Review: Customer 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.
