I finally broke down and bought some. It's sooooo expensive. How often should it be used? Can it be used on carnivorous plants? I think I'm mostly going to use it on my juniper bonsai and strawberries that are recovering from mites and almost kicked the bucket. Then, I also want to use it on some Japanese red maple seeds I'm starting and a wisteria cutting. Can it be used as just a general supplement though?