Q.Is Liquid Seaweed Good For Cuttings
is liquid seaweed good for fuchsia cuttings
Certified GKH Gardening Expert
It can be at very low dosage. Ultimately, though, there are little to no roots to take it up. If you do use it, I would make sure to use it at 1/4 strength or less.
This article will provide some more information on kelp: