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City of Vancouver Washington

Event Details

Tree of heaven branch and seeds
Registration Required

Tree of Heaven Workshop

Saturday, August 9, 2025
9:00 am - 10:30 am
Add to Calendar Saturday, August 9, 2025 9:00 am Saturday, August 9, 2025 9:00 am America/Los_Angeles Tree of Heaven Workshop RSVP required, sign up here. Join Vancouver Urban Forestry staff and Neighborhood Tree Steward for a walk and talk about the invasive Tree of Heaven, also known as ailanthus. Learn how to identify the noxious tree at various stages of development, how to report a sighting, best management practices for removal and treatment and replanting options. Tree of Heaven is a fast-growing tree reaching over 80 feet tall and is a prolific seeder that can quickly take over sites. Its root system is extensive, and new sprouts have been known to cause damage to sewers and foundations. Because it is…

Event Dates


2101 St Johns Blvd Vancouver WA

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RSVP required, sign up here.

Join Vancouver Urban Forestry staff and Neighborhood Tree Steward for a walk and talk about the invasive Tree of Heaven, also known as ailanthus. Learn how to identify the noxious tree at various stages of development, how to report a sighting, best management practices for removal and treatment and replanting options.

Tree of Heaven is a fast-growing tree reaching over 80 feet tall and is a prolific seeder that can quickly take over sites. Its root system is extensive, and new sprouts have been known to cause damage to sewers and foundations. Because it is weak-wooded, it frequently suffers storm damage. Tree of Heaven has a tropical appearance and when crushed may smell like “burnt peanut butter”. The tree’s bark is smooth and gray. Seeds appear in large clusters. Discover tree identification tips and when and how to treat.

    Contact: Urban Forestry at trees@cityofvancouver.us