that rockwool could be the problem. holds moisture very well and too much water can mean curling leaves. just an idea.
GoldenGraham84 Reviewed by GoldenGraham84 on . Leaves curling under and no growth. Hi everyone, I hope someone can help me. Please excuse my ignorance as I am a noob grower :). I have included some pics to help with the exlaination. H=Answer if you grow hydro or aero C=Answer if you grow coco S=Answer if you grow traditional soil L=Answer if you grow soilless other than coco (Promix, Hyponex, SunshineMix) R=Answer if you grow in RockWool T=Answer if you grow in HydroTon D=Answer if you run any type of automatic drip system, including into soil or soilless E= Rating: 5