Invasive species

English Holly (Ilex acquifolium)

The ivy has been pulled so now it's time to tackle your holly. Check out our short and sweet video (under 2 minutes) on "How to Remove English Holly". The moist soils we now have as a result of the recent rainfall, make easy work of uprooting small plants, so take this opportunity to use the weather to your advantage!

We hope that you'll watch it. share it with your neighbors and friends, and give us your feedback.

This is a broadleaf evergreen tree/shrub that is used as an ornamental. It’s native to the British Isles and can grow up to 50′ tall and 15′ wide, either as a single

trunk or a multi-stemmed thicket. The glossy dark green leaves are wavy with sharp, stout spines. The flowers are small and white and smell sweet. The female holly produces red or orange berries in the winter that are spread by birds (the berries are poisonous to humans). The plant also spreads by layering and suckering.

To control holly, which displaces native plants and shrubs in forest understory, you should pull up small plants when the soil is moist. Larger plants can also be removed with a weed wrench.  Mature trees have extensive root systems; the best way to deal with them is to cut the trees off at ground level and keep cutting off any suckers.

Photo courtesy of SOLVE

Photo courtesy of SOLVE

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 […]

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 […]

Ainsworth Elementary School Native Green Space & Backyard Habitat Certification

Ainsworth School located in SW Portland on Vista Ave is very fortunate to have a few natural areas on the grounds where students can gather to learn about forest ecosystems, journal, and create art. The […]