There is a product called Superthrive that many Orchid growers use to "boost" their plants. It is reportedly full of vitamins and hormones. Some say it is hokey, others swear by it. It is not cheap. I was using it as an amendment to my water soluble fertilizer when I was propagating small palms. It was also used with the soluble fertilizer as a root drench when planting a new palm. How effective it was can not be determined however, loss of a palm was rare. This being said, I am curious if anyone is using this product on crotons ? Due to the expense, it does not seem prudent to use as a supplement in a water soluble fertilization program for established plants. I am curious if this product would be beneficial as an aid to establish cuttings? Or perhaps as an elixir for those plants that were really stressed by winter colds. Or if you take an air layer to find neglible amounts of roots? Any thoughts or experience with this product on crotons? The Moose has not used this product on any of his crotons.