Ciao Cecil, I don't know about Miracle grow, but last week was watching a gardening program on QVC. They had a wonderful fertilizing spray that you sprayed on the plants and the nutrition wast taken by leaves and from what I saw, it really benefits all kinds of plants. The results that I had seen on the show were remarkable. They use it also on Vegetables and fruits. Maybe if you go to QVC on the internet and look up their gardening stuff, you can find and order it. I think I may order it if I can find it on thier website. I can't think of the name, but it is described when you look it up.