Land Plants - invasive

Tree of Heaven (Ailanthus altissima) on Sep 7, 2025

Submitter does not have a specimen
EDRR Status: Local expert notified

Description of specimen

At least 4 large 30-50 ft tree od heaven in rental property on cross street of Linn Ave and Eastfield Drive in Oregon City. Numerous smaller shoots growing in area.

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

Numerous large to small Tree of Heaven growing on rental property behind my home off Linn Ave Oregon City.

Expert Reviewer

Samuel Leininger
Clackamas Soil and Water Conservation District
4-County Cooperative Weed Management Area
Columbia Gorge Cooperative Weed Management Area

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