Land Plants - invasive

Tree of Heaven (Ailanthus altissima) on Feb 24, 2026

Submitter has sample
EDRR Status: Local expert notified

Description of specimen

We have three medium to large trees in our yard.

Commentary

None

Remedy

Check out a really thorough guide regarding tree of heaven identification and control OSU’s Solve Pest Problems: https://solvepestproblems.oregonstate.edu/weeds/tree-of-heaven

The Portland metro-area Cooperative Weed Management Area also has some great best management practices for handling this weed The 4 County CWMA: https://4countycwma.org/assets/best-mgmt-practices/tree-of-heaven-bmp_final.pdf

Resources

https://solvepestproblems.oregonstate.edu/weeds/tree-of-heaven

https://4countycwma.org/assets/best-mgmt-practices/tree-of-heaven-bmp_final.pdf

Location

We have about 3 trees in our yard. One of them is fairly large. We live in a low, flat area.

Expert Reviewer

Avatar of Reviewer

Coleman Hepner
Tualatin SWCD

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