11834 Tilley Rd. S.
Olympia, WA 98512
Ramiro Chavez, Department Director and liaison to the Board of County Commissioners
Thurston County Noxious Weed Control Board Members:
Gene Little, Chair
Martin Casey, Vice Chair
Noxious Weeds & Lakes Staff
Rick Johnson, Coordinator
Mary Jo Seery, Lead Weed Technician
Janie Civille, Aquatic Resource Specialist
Dan Reynoldson, Weed Technician
Angela Celestine, Office Assistant
Non invasive flower seeds to attract bees and other pollinators available!
Bee-Sensitive weed control - You can do your part to control destructive noxious weeds and still be the bee's knees. Replace noxious weeds with non-invasive, pollinator friendly plants that bloom from Spring through Fall to provide bees and other pollinators with food throughout their active season. To request a FREE seed packet, please call the Thurston County Noxious Weed Control office at 360-786-5576 or Email your name and mailing address to: firstname.lastname@example.org
Our mission is to protect the citizens, the natural resources, and the agricultural resources of the County from the degrading impact of invasive, noxious weeds.
Noxious weeds threaten public health, the environment, wildlife habitat, native plants, agriculture areas, and recreational areas.
Thurston County Noxious Weed Control is monitoring for 42 species of noxious weeds which are targeted for control out of a list of 99 designated by the State of Washington. The remaining 57 species have not yet been found in Thurston County, but are targeted annually through early detection surveys.This preventative effort to find species while they are limited, prevents them from becoming widespread. Prevention is the most effective control strategy. All species of noxious weeds are non-native.
A risk assessment is used in prioritizing the weed list. To view our rationale, go to the Risk Assessment Chart. To see photographs of those species designated for control in Thurston County, go to the Noxious Weed List.
Species of Concern
In addition to the species listed on the County noxious weed list, six species pose a significant threat due to their invasive traits: spartina, kudzu, garlic mustard, hydrilla, water primrose and flowering rush. These species are not yet found in Thurston County.
In addition to the species listed above, there are weeds of special concern because of their aggressive and invasive natures.These species are already known to be widespread in Thurston county. These include:
Evergreen blackberry (Rubus laciniatus), Himalayan blackberry (Rubus armeniacus), Eurasian watermilfoil (Myriophyllum spicatum), Policeman’s Helmet (Impatiens glandulifera), Canada thistle (Cirsium arvense), Scotch broom (Cytisus scoparius), yellow nutsedge (Cyperus esculentus), and the invasive cultivars of English Ivy: Hibernica” (Hedera hibernica), “Baltica” (Hedera helix), “Pittsburg” (Hedera helix) and “Star” (Hedera helix).
Thurston County Noxious Weeds Map
Click the image above to go to the Noxious Weeds Map on the Thurston County Geodata web site. Use this map to see which known noxious weed species are in your neighborhood. Here's how:
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