Gresham, OR Invasive Plant Rules: Prohibited Species (2026)
Key Facts
- Prohibited acts
- Sell, plant, release, spread
- List authority
- City manager maintains list
- Governing section
- GRC § 7.10.240
- List basis
- Federal/state/county harm designations
Summary
Gresham bans selling, planting, releasing, or spreading any plant on the city's official Invasive Plant List, which the city manager adopts and maintains.
No person shall sell, plant, release, or spread any plant that is included in the Invasive Plant List adopted by the manager pursuant to GRC 7.15.025.
Official source re-checked September 7, 2026: the cited page had not changed since it was quoted.
Full Breakdown
Gresham Revised Code § 7.10.240 makes it unlawful to sell, plant, release, or spread any species included on the city's Invasive Plant List. The manager adopts and maintains that list under GRC § 7.15.025, drawing on non-native plants whose introduction causes economic or environmental harm, plus any plant a federal, state, or county government has designated injurious to public health, agriculture, recreation, wildlife, or property. Because the list itself can change, property owners and nurseries should check the current version before planting or selling any questionable species within city limits.
Violations & Fines
Selling, planting, releasing, or spreading a listed invasive plant violates GRC § 7.10.240 and can trigger nuisance code enforcement under Gresham's general nuisance provisions.
Frequently Asked Questions
Which plants are banned in Gresham?
Can I be cited for a plant already growing on my property?
Sources & Official References
Other rules in Gresham
Compare Gresham to another location·View the Oregon invasive plant rules overview
See something wrong?
Help us keep this page accurate. If you notice an error or outdated information, let us know.
Prohibited Species in Nearby Cities
How other cities in Multnomah County handle prohibited species.