They are way better than rockwool. Just don't keep them too wet. Used them for years for seed and cuttings. Still keep some to start seed. Riot's are the best of the plugs I used.
LOC NAR on probation Reviewed by LOC NAR on probation on . has anyone ever used root riot starter plugs I am thinking about buying some root riot starter plugs but want to know more about it than what the stores online say Rating: 5