tansy ragwort flowers

July’s Weed of the Month: Tansy Ragwort

  Tansy ragwort (Senecio jacobaea) is an invasive weed with a long and deadly history in the Pacific Northwest. In Oregon, it is designated as a Class B...

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June’s Weed of the Month: Policeman’s Helmet

hr Policeman’s helmet (Impatiens glandulifera) is an invasive weed which grows in ditches, wetlands, and along waterways. Native to India, this fast-growing...

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May’s Weed of the Month: Orange Hawkweed

hr Orange hawkweed (Hieracium aurantiacum) is a relatively new invasive weed in Clackamas County.  With your help, our team plans to keep it from becoming a...

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April’s Weed of the Month: Garlic Mustard

Garlic mustard (Alliaria petiolata) is an increasingly invasive weed in our community.  Native to central and western Europe, this fast-growing plant commonly...

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Scotch broom bushes with yellow flowers

February’s Weed of the Month: Scotch Broom

February is the one month of the year that many of us associate with our love and romance. We cut out paper hearts for Valentine’s Day cards and wrap up...

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July’s Weed of the Month!

We are once again partnering with our friends from the Columbia Gorge Cooperative Weed Management Area to feature invasive knapweeds as the target weed for the...

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Scotch broom flowers

June’s Weed of the Month!

Its June, and that means its time for a new Weed of the Month! We are working with our partners at the Columbia Gorge Cooperative Weed Management Area to...

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