Invasive species

English & Irish ivy

Urban Conservationist Mary Logalbo shows your step by step instructions on removing invasive ivy from your land.

Invasive ivy strangling trees

English ivy (Hedera helix L.) and Irish ivy (H. hibernica) are perennial plants introduced to the U.S. by European immigrants.  They are woody, evergreen vines with waxy leaves and green or white flowers that produce black berries. The ivy crowds out native plants and climb up trees and shrubs, depriving them of sunlight and water and eventually killing them. The berries can be toxic to pets.

The best control method is to pull them out by hand when the soil is moist.  For ground ivy, hand-pull and roll the matted plants. For tree ivy, cut the vines around the trunk of the tree at waist level, pull the wines to the forest floor and then pull and roll back the matter wines away from the trunk.  Ivy is vigorous and grows fast so you’ll need to return to the same area and pull vines several times a year.

 


Videos

Projects

Hummingbird Hill Forest Restoration Project

In 2013, West Multnomah Soil & Water Conservation District board member Jane Hartline met Carol Canning at a gathering in Linnton.  They quickly bonded over their distaste of English ivy, in particular the ivy covering […]

Vedanta Restoration Project

The Vedanta Society of Portland is working with the Conservation District on a number of special projects that bring its members and visitors closer to native plants and the natural world. These projects include a […]

Englewood Restoration Project

Englewood Restoration Project offers wildlife and native plant diversity to the adjacent Tryon Creek State Park. Nestled on the edge of Tryon Creek State Park, a group of eight property owners are working with the Conservation […]

Organizations