you may already have roots and just not to the point where they have made it beyond the rockwool cube. Yellowing leaves are normal as the plant uses up its stored nutrients to make fresh root and shoot growth. As long as there is no brown rotty crap or excessive wilt, you're fine.
stinkyattic Reviewed by stinkyattic on . Cloning. I'm having a really had time cloning. It's been 9 days and I still see no roots. Does anyone have a method with rockwool that works? Rating: 5