posted 9 years ago
I would do it. After all, it will die if you put it outside, so you don't have a lot of choice. Actually, it should do okay in a pot as long as you transplant it carefully, with the entire soil block intact, when you put it outside. It should suffer very little shock that way. Besides, plums are pretty hardy and can usually take a bit of neglect or mild abuse. Otherwise, you could keep it wrapped in slightly damp moss or shredded paper (whatever was packed around it in the mail) as long as you keep it very lightly moistened (NOT WET!) and open the package a bit to keep it from mildewing or rotting. Just keep it cool and relatively dark (basement or garage that stays above 32 degrees) and it will think it is still winter and stay dormant.