I just use a balanced fert, N-P-K, 20-20-20 water soluble. Any brand....
I use good old trip 10 on all my trees, shrubs, plants, and lawn. They absolutely love it. I hit everything during the grow season with a dose usually about every 3-4 weeks and once or twice during the winter months, depending on the species of tree. For example, my maple doesn’t get any fertilizer during the winter. Once mid-autumn rolls around I discontinue the fertilizer for the maple until March. The other trees will get a dose about every month and a half during the dormant season. However, I do have a few Brazilians and Divi Divi that don’t really have the same type of winter season so they stay on a fairly consistent schedule for fertilizer. Now, having said all that, they get dyna-gro during watering twice a week of the species takes thAt much watering. On new reposts or new trees and usually once a week I’ll add a shot of vitamin B to the mix for water and finally about once every 10-14 days during watering, I’ll add a TBSP of epsom salt to my distilled water. Have kept my trees happy and full for years with this schedule and strategy.
