Plum tree maintenance?
I am hoping that my castleton plum tree will bare fruit for the first time this year. (Lots of blossoms last year, but wiped out by frost.) What will I need to do to get edible plums? I'm not a fan of chemicals, so while it seems they will be required, I'd like to keep them to a minimum. Can you suggest what I need to treat for, what to use, how to use it, and when?