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Resident urges Sammamish to act on Tansy ragwort and other noxious weeds
Summary
Mary Richter, a Washington native-plant steward and long-time Sammamish resident, urged commissioners to help control Tansy ragwort through staff training, contractor requirements, and stronger permitting/ enforcement on vacant lots; she cited King County guidance on seed production and seed longevity.
During public comment, Mary Richter of Sammamish urged the Sustainability Commission to prioritize control of Tansy ragwort and other noxious weeds.
Richter, who identified herself as a Washington native-plant steward, summarized King County guidance about the species: a single plant can produce tens of thousands of seeds and seeds can remain viable in soil for 10–16 years. She said the seed-production numbers mean small…
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