Description
- Grodan Stone wool (Rockwool) is made from molten rock spun into cotton candy-like fibers
- Designed for seed and cutting propagation prior to "blocking on" into larger growing blocks
- remendous capacity for absorbing nutrient solution while retaining plenty of oxygen for rapid plant growth
- A-OK plugs come in a sheet that fits a standard 10x20 flat.
- Come in a full case of 30 sheets of 98 cubes
GrodanA-OK 36/40 6/15 Starter Cubes, 1.5" x 1.5", 30 sheets of 98 Cubes
