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Webinar presenter urges gardeners to avoid invasive plants, cites invasive.org and EDDMapS for ID
Summary
A Clackamas County Master Gardener webinar guided homeowners on avoiding invasive plants, recommending botanical names, regional lists, and tools (invasive.org, EDDMapS). The presenter offered native and noninvasive alternatives and answered audience questions about ivy, blackberry and cultivar value.
A webinar hosted through the Clackamas County Master Gardener program walked homeowners through how to choose garden plants that won’t escape into nearby natural areas, the presenter said.
The presenter opened by urging gardeners to “make a plan” before buying plants and invoked a simple principle: “First, do no harm.” She said many plants sold at nurseries are listed as invasive or noxious in at least one state and advised checking botanical (Latin) names and regional listings before purchase.
Why it matters: ornamental plants that naturalize can spread rapidly, crowd out keystone species and complicate control. The presenter used Quercus garryana (Garry or Oregon white oak) and Acer macrophyllum (big‑leaf maple) as examples of native trees that provide high wildlife value and can be threatened when invasive vines and shrubs take hold.
The presenter recommended practical steps for shoppers and…
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