Managing Aspen Suckers: Keep the Best, Remove the Rest

Turning Aspen Suckers into a Tree Clump

When a hybrid aspen dies but sends up suckers from the base, you can grow a new multi-trunk clump—if that's your goal.

Decision Time: This Fall or Next Spring

1. If you want a single-trunk tree: Select the tallest, straightest sucker. Cut all others at ground level.
2. If you want a natural clump: Keep 3–5 well-spaced stems. Remove the rest.
3. Timing: Do this in fall after leaf drop, or wait until spring to confirm winter survival.

Why This Works

• Aspens naturally regenerate from root suckers.
• The root system is already established, so growth is fast.
• Each sucker is genetically identical to the original tree.

Maintenance

Monitor annually for new suckers. Remove unwanted ones promptly. The clump will mature into a handsome grove if spaced adequately.