The best time to prune an aspen tree is in the early spring, before the tree leafs out. Pruning an aspen tree removes dead branches, thins out crowded limbs and eliminates any hazards.
About the Author
Angie Briggs has been a health and fitness writer since 2006. Her articles have been published on eHow, LIVESTRONG.COM and GardenGuides. She graduated from Thompson Institute with a diploma as a computer support specialist and received certification from CareerStep as a medical transcriptionist and medical language specialist.