Controlling invasive plants

Some common garden plants have become invasive pests in wild habitats. In Oregon, these invasive plants include some favorites such as English ivy and Himalayan blackberry.

Invasive species: What gardeners need to know

Many of the invasive plant species introduced to the United States originated as garden plants. Learn what you need to know to prevent future invasions.

Linda R. McMahan, Joy Jones, Robert Emanuel | Dec 2024 | OSU Extension Catalog

Solve Pest Problems: Invasive Insects and Plants (in English)

A collection of resources for identifying and understanding invasives. Invasives are non-native species that spread aggressively and alter the environment. Non-native species that harm Pacific Northwest habitats include invasive insect, worm, and plant species.

LeAnn Locher | Sep 2024 | Online resource

Invasive weeds can hitchhike into your yard — here’s how to fight back

Keeping weeds at bay can be frustrating, but it can be done.

Kym Pokorny | Mar 13, 2025 | News story

Ivy removal in a home landscape

Learn the strategies to tackle English ivy and see how you can remove it from trees and fences.

Linda R. McMahan, Linda Brewer | Feb 2026 | OSU Extension Catalog

Tackling invasive Himalayan blackberry takes persistence and planning

OSU Extension horticulturist shares strategies for long-term control.

Kym Pokorny | Aug 29, 2024 | News story

Noxious Weed Control (in English)

Oregon Department of Agriculture's website. Information on noxious weed control.

Jul 2018 | Online resource

Oregon Invasive Species Council (in English)

Our mission is to protect Oregon's natural resources and economy by planning and leading a coordinated and comprehensive campaign to prevent the introduction of invasive species and eradicate, contain or manage existing invasive species in Oregon.

Jul 2018 | Online resource

Invasive Plants in Portland Poster (in English)

The city is working to control invasive plants and Portland residents can help by identifying and managing them in their own yards.

Jan 2016 | Online resource

Published Jul 2018, Reviewed 2026

Want to learn more about this topic? Explore more resources from OSU Extension: Invasive species

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