WELCOME TO THE WEEDWISE PROGRAM!

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Got Mail?

Did you recently receive a letter in the mail from the WeedWise program? The WeedWise Program is preparing for another season of priority weed control, and we are reaching out to landowners across Clackamas County that are currently impacted or under threat from priority invasive weeds. If you received one of our mailings requesting permission […]

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

Policeman’s helmet (Impatiens glandulifera) is an invasive weed that grows in ditches, wetlands, and along waterways. Native to India, this fast-growing annual was introduced as an ornamental plant due to its impressive growth and the showy purple, pink or white blooms. Since introduction, it has escaped cultivation to become the dominant riparian vegetation in many […]

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Staff Spotlight: Samuel Leininger, WeedWise Manager

  Get to know the WeedWise program, through our people! The success of the WeedWise program is in great part due to the hard work and dedication of our staff.  If you have ever called the office or stopped by for assistance with your weed problems, you have undoubtedly worked with one of our hard-working […]

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Orange hawkweed in bloom

May’s Weed of the Month: Orange Hawkweed

Orange hawkweed (Hieracium aurantiacum) is a relatively new invasive weed in Clackamas County and we are working to keep it from becoming a common problem for landowners! A member of the sunflower family, orange hawkweed is native to central and southern Europe and grows in open areas like roadsides, meadows, pastures, hayfields, and disturbed sites.  […]

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Happy Earth Day!

Earth Day is April 22, 2022! Earth Day provides a great opportunity to reflect on the planet we all love and share.  One of the biggest threats to our natural systems is from the threat of invasive species.  The introduction and unchecked spread of invasive weeds disrupts food webs and cause a collapse of our […]

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Staff Spotlight: Lindsey Karr, WeedWise Specialist

Get to know the WeedWise program, through our people! The success of the WeedWise program is in great part due to the hard work and dedication of our staff.  If you have ever called the office or stopped by for assistance with your weed problems, you have undoubtedly worked with one of our hard-working employees.  […]

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It’s Native Plant Appreciation Month!

Let’s Celebrate! Here at the WeedWise program, we are in the business of preventing and controlling invasive weeds.  As anyone that spends much time battling invasive weeds can attest, our work can feel a little daunting at times.  We all have those days when we are battling a bothersome patch of invasive weeds and lose […]

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herbicide

Recently discovered organic herbicide shown to be safe and effective against nearly all invasive weeds!  

Invasive weeds can be extremely damaging and pose a real threat to the social, economic, and ecological health of our communities.  One important tool for controlling large infestations of invasive weeds is herbicides. Industrial herbicides have been used to manage large infestations of invasive weeds since the 1940s, but their use is problematic for some […]

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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 invades sites such as parks, trails, roadsides, and streamsides. April is a great time to manage this important invasive weed on your property. Sometimes referred to as Jack-by-the-hedge, garlic mustard is easily identified […]

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