Each to their own. I venture the ones that had leaves yellow, probably will have roots soon.

I would use a heating pad under the tray.

I have seen rooting in as little as 5 days and I give up at 21 if they haven't gone. Sometimes you can tell right away.
WashougalWonder Reviewed by WashougalWonder on . Clones slow to root, or paranoia? Hello folks, and thank you first of all for sharing such a wealth of information. Here's the scoop: My friend and I have: 3 Big Bang cuttings, and 3 White Widow cuttings (2-3 nodes each) fan leaves cut in half, stem dipped in root hormone gel, and placed inside a small rockwool cube, then put inside a large rockwool cube inside a growing tray and dome (neither rockwool cubes pre-soaked... Shame, shame, I know...) The dome is misted at least once a day, and the dome is removed once a day Rating: 5