Canada thistle (Cirsium arvense) is a wide-spread invasive weed found in all parts of Clackamas County. Unlike many native thistles found in Oregon, Canada thistle can quickly overrun an area and displace native […]
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.
It’s National Invasive Species Awareness Week!
National Invasive Species Awareness Week (February 26 -March 3, 2024) has begun! Once a year, folks from around the country take a full week to consider the many impacts that these species have […]
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 […]
February Invasive Weed of the Month: Scotch Broom
Scotch broom is a wide-spread invasive weed in our community. You have probably noticed large stands of it along our rural roads and highways, in pastures and in forests. Now is a great […]
January Invasive Weed of the Month: English Ivy
English ivy (Hedera helix) may conjure up images of cozy, country cottages, but don’t be deceived. This invasive weed can destroy buildings, poison pets, and topple trees. Ivy grows quickly, requires little maintenance, […]
2024 Native Plant Sales
The 2024 Native Plant Sales are in full swing. While the Clackamas Soil and Water Conservation District doesn’t host a native plant sale, many of our local districts do. And if you don’t […]
Protect Your Horses from “Pasture Bullies”
Tansy Ragwort is the toxic weed of the moment. It’s bright yellow flower can been seen throughout our rural areas. In many places, however, good neighbors and land managers are out there pulling […]
Clean Your Boots to Protect Our Natural Areas
Clean your boots! And your sneakers, sandals, and flip-flops too. Give them a quick check before and after you hike to prevent the spread of invasive weeds. Summer is here and that means […]
Our Weed Tool Library Has New Tools!
The Clackamas Soil and Water District has a Weed Tool Library. This free resource includes 17 different shrub and tree removal tools and lake rakes available for use in your weed control project. […]
