Clean your boots after you hike. And your sneakers, sandals, and flip-flops too. Give them a quick check before you hike as well and help to prevent the spread of invasive weeds. Summer […]
Archive | Weeds
Detecting, controlling, and eradicating invasive plants are topics captured in the Weeds category. Invaders affect wildlife and crop production. In some cases they pose health risks to people and animals.
July Invasive 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 […]
June Invasive Weed of the Month: Policeman’s Helmet
Policeman’s helmet (Impatiens glandulifera) is an invasive annual which threatens streams and rivers throughout the Pacific Northwest. It is designated as a Class B invasive weed in Oregon. This means that it is […]
It’s Oregon Invasive Weed Awareness Week!
May 19 – 25, 2019 has been declared Oregon Invasive Weed Awareness Week! Springtime is an ideal time of the year to reflect on the invasive weeds impacting Oregon. Everyone can begin taking […]
May Invasive Weed of the Month: Orange Hawkweed
Orange hawkweed (Hieracium aurantiacum) is a fairly new invasive weed in Clackamas County and, with your help, our WeedWise team plans to keep it from becoming a common problem for landowners! A member […]
It’s Native Plant Appreciation Week!
Let’s Celebrate! Our WeedWise program is in the business of preventing and controlling invasive weeds. As anyone that spends much time battling invasive weeds can attest, this work can feel a little daunting […]
Spring Gardening Tips for Pollinators and Weed Management
Spring is officially here and farmers and home gardeners are itching to get to work outside. In celebration of warmer, sunny days, we offer some suggestions on how to make your yard pollinator […]
April Invasive 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 […]
The Undesirable Beauty of Lesser Celandine
Each spring we welcome the return of abundant flowers and cherish them as they lift our spirits. Unfortunately, some of these beautiful plants have proven to be aggressive and, ultimately, highly unwanted. One […]
March Invasive Weed of the Month: Canada Thistle
Canada thistle (Cirsium arvense) is a wide-spread 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 […]
It’s National Invasive Species Awareness Week!
National Invasive Species Awareness Week (February 25 -March 1, 2019) kicks off today! Once a year, folks from around the country take a full week to consider the many impacts that non-native invasive […]
