Sure it does not hurt them and it sure does help them root.

There is a fungiside in the gel that helps keep damping off at bay so they have a better chance to root then ones that don't use anything.
Zandor Reviewed by Zandor on . Reapplication of rooting gel needed or not? should i reapply rooting gel to clones? after a few days there is none left on them. Rating: 5