International Bonsai Master Harry Harrington has a nice article titled “Rhizotonic for Bonsai Roots“. The article is very interesting on how this product was helping Harry’s collected old Hawthorn trees. Harry is one of the leading experts on Hawthorn trees and looks like this product seems to be working for him. I have checked Amazon and it looks reasonably priced. I think I am going try it out. I have added this article to the Collecting Trees, Re-potting and Roots pages all under Bonsai Basics.

Photo courtesy of Bonsai4Me.