Keep clone enviornment humid, but don't spray the clones directly. The idea is to make the plants find their moisture/nutrients in the soil, (Rockwool) not to continue vegetative growth of the canopy. If you are providing all of the clones needs above ground, there is no incentive for it to develop roots.

Be careful not to dry-out the clones when 'airing-out' or giving fresh air. Too dry, and the leaves will crisp-up.

Keep clones warm. Cold will kill as quickly as drying-out.

Rockwool is acidic, and should be rinsed with properly ph'd water prior to use. Keep it moist without keeping it dripping wet. Transplant when roots start showing, but no nutes till third (or so) new node after transplant.
Rusty Trichome Reviewed by Rusty Trichome 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