Author Archive | Sam Leininger

pollinator header

It is National Pollinator Week!

It is National Pollinator Week! June 17-23, 2024 has been designated as National Pollinator Week!  Join the WeedWise program and other organizations across the country in celebrating our native pollinators. Summer is here and the weeds and wildflowers are blooming all around us. This burst of summer color also brings the many bees, flies, beetles, […]

Continue Reading
Phslider

June’s Weed of the Month: Policeman’s Helmet

Policeman’s helmet (Impatiens glandulifera) is an invasive weed that 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 […]

Continue Reading
Orange hawkweed in bloom

May’s Weed of the Month: Orange Hawkweed

Orange hawkweed (Hieracium aurantiacum) is a relatively new invasive weed in Clackamas County and we are working 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 roadsides, meadows, pastures, hayfields, and disturbed sites.  […]

Continue Reading
Hyaden Slider

Welcome Hayden!

We are very pleased to welcome a new addition to the WeedWise team! The WeedWise program is pleased to announce our newest staff member Hayden Jorde!  Hayden joins our team as a newly developed WeedWise Technician position. Hayden will support the WeedWise Program’s efforts managing invasive weeds across Clackamas County but will focus much of […]

Continue Reading
lupine

Happy Earth Day!

Earth Day is April 22, 2024! 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 invasive species.  The introduction and unchecked spread of invasive weeds disrupt food webs and cause a collapse of our natural systems.  So […]

Continue Reading
herbicide

Recently discovered organic herbicide shown to be safe and effective against nearly all invasive weeds!  

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 controlling large infestations of invasive weeds is herbicides. Industrial herbicides have been used to manage large infestations of invasive weeds since the 1940s, but their use is problematic for some […]

Continue Reading
garlicmustardslider

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 important invasive weed on your property. Sometimes referred to as Jack-by-the-hedge, garlic mustard is easily identified […]

Continue Reading
Canada-thistle-slider

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 […]

Continue Reading
NISAW-horizontal-logo_cropped-1

Its National Invasive Species Awareness Week!

National Invasive Species Awareness Week (February 26-March 3, 2024) kicks off today! Each year, folks around the country take a week to consider the many impacts that non-native invasive species have on our communities, working lands, natural areas, and pocketbooks.  So take a moment to celebrate with the WeedWise Program to learn a little more […]

Continue Reading
WeedWise Program