September is the Time to Control Japanese Knotweed Japanese knotweed (Reynoutria japonica) is one of the most damaging weeds in the world, and has been...
puncturevine plant spreading Puncturevine (Tribulus terrestris) is a plant that lives up to its name. This invasive weed has spiny seed heads that can easily...
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...
Part of the beauty of the Pacific Northwest is the lush forested land that surrounds our homes and communities. This beauty is fragile, however, as we have...
This week is Oregon Invasive Species Awareness Week. Spread the word — not the weeds! Oregon Invasive Species Awareness Week is an opportunity for all...
Don’t let the attractive flowers of orange hawkweed fool you! Orange hawkweed (Hieracium aurantiacum) is a fairly new invasive weed in Clackamas County....
hr 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...
Garlic mustard (Alliaria petiolata) is an increasingly invasive weed in our community. Native to central and western Europe, this fast-growing plant commonly...
Join Clackamas SWCD’s Justin Cooley at Hopkins Demonstration Forest in Beavercreek, Oregon on Saturday, April 12, 2025 for a Forest Weed Management Field...
Canada thistle (Cirsium arvense) is a widespread invasive weed found in all parts of Clackamas County. Unlike the many native thistles found in Oregon,...
hr National Invasive Species Awareness Week (February 24-28, 2025) kicks off today! Each year, folks around the country take a week to consider the many...
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...
hr February is the one month of the year that many of us associate with love and romance. We cut out paper hearts for Valentine’s Day cards and wrap cut...
The Clackamas Soil and Water Conservation District is seeking qualified candidates for multiple WeedWise Technicians to support program efforts in the Mt Hood...
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...
Green leaves and red berries of English holly English holly (Ilex aquifolium) is a popular evergreen frequently noticed during the month of December. Festive...
Himalayan blackberry (Rubus bifrons) tantalizes us with its sweet fruits in the summer and tortures us with its prickly vines all year long. Also known as...
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...
Tansy ragwort (Jacobaea vulgaris) has long tormented hay producers and rural landowners who graze livestock. Horses and cows are especially susceptible to this...
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...
