Tansy ragwort has long tormented rural landowners who graze livestock. Horses and cows are especially ...
Tansy ragwort (Senecio jacobaea) is an invasive weed with a long and deadly history ...
Policeman’s helmet (Impatiens glandulifera) is an invasive weed which grows in ditches, wetlands, and along ...
We have plenty of thistles growing in our area and landowners across the region are working hard to combat these prickly invaders. While most of the thistles growing in our area are invasive, some of them are actually native. Unfortunately, a recent discovery from eastern Oregon marks the addition of a new invasive thistle to […]
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 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 gravel pits, roadsides, meadows, pastures, […]
May 14-20 has been declared Oregon Invasive Weed Awareness Week! This is the one week of the year to reflect on the invasive weeds impacting Oregon and for us to begin taking steps to combat these aggressive and harmful invaders. What Are Invasive Weeds? When many people think of “weeds” they conjure images of common […]
Let’s Celebrate! The WeedWise program is in the business of preventing and controling 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 rather pernicious patch of invasive weeds, and lose site of […]
Earth Day is this Saturday, April 22, 2017! 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 chains and can cause a […]
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 priority invasive weed on your property. Sometimes referred to as Jack-by-the-hedge, garlic mustard is easily identified […]
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. […]
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 […]
Thistles are one of the most common weed problems that property owners deal with in Clackamas County. Many of the thistles we encounter are invasive and can grow to dominate a property. But did you know there are at least four thistles that are not only non-invasive, but native to western Oregon? These native thistles […]
National Invasive Species Awareness Week (February 27 -March 3, 2017) kicks off today! Once a year, folks around the country take a full week to consider the many impacts that non-native invasive species have on our communities, working lands, natural areas, and pocket books. So take a moment to celebrate with the WeedWise Program to […]