when to prune crabapple trees Home › Forums › Tree & Shrub Questions › Tree & Shrub Questions › when to prune crabapple trees This topic contains 0 replies, has 1 voice, and was last updated by Anonymous 8 years ago. Viewing 1 post (of 1 total) Author Posts September 30, 2008 at 12:15 pm #28519 Anonymous first, when you have time. i personally almost never have time. actually, now is good. in the fall. there are plenty of good books that deal with pruning, btw. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic.