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 invasive weed. It is believed to have been introduced here in the early 1900’s through ballast water from a ship. This plant is native to Europe and Asia […]
Lolo Pass Hawkweed Control
The WeedWise program was proud to participate recently in an effort to control invasive orange hawkweed and meadow hawkweed along Lolo Pass Rd in the upper portions of the Sandy River watershed in Clackamas County. This work is an ongoing effort between the WeedWise program and our partners from the Mt Hood National Forest, the […]
National Pollinator Week 2018!
It is National Pollinator Week! Join all of us here at the WeedWise program in celebrating our native pollinators. June 18-24, 2018 has been designated as National pollinator Week and there are activities going on here in Oregon and across the country! Summer is here and the weeds and wildflowers are blooming all around us. […]
June’s Weed of the Month: Policeman’s Helmet
Policeman’s helmet (Impatiens glandulifera) is an invasive weed which 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 […]
10 Ways to Celebrate Oregon Invasive Weed Awareness Week!
May 13-19 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 a […]
May’s Weed of the Month: Orange Hawkweed
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, […]
A Fond Farewell: Sarah Hamilton
It isn’t often that we lose a WeedWise team member, but this week we bid a fond farewell to WeedWise Specialist and CWMA Coordinator, Sarah Hamilton. Sarah joined the WeedWise program in 2014 and has split her time working on invasive species management in the Sandy River watershed, and in coordinating both the 4-County and […]
It’s Native Plant Appreciation Week!
Let’s Celebrate! The WeedWise program is 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 rather bothersome patch of invasive weeds, and lose sight of […]
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 priority invasive weed on your property. Sometimes referred to as Jack-by-the-hedge, garlic mustard is easily identified […]
March’s Weed of the Month: Canada thistle
Canada thistle (Cirsium arvense) is a widespread invasive weed found in all parts of Clackamas County. Unlike the many native thistles found in Oregon, Canada thistle can quickly overrun an area and displace native plants, reduce agricultural yield, and create problems for grazing animals when they infest a field or pasture. They also cost a […]
