Dee’s Landscaping & Lawn Service

10/20/2026

04/03/2026

02/27/2026

LEAFY SPURGE-PRIORITY INVASIVE SPECIES
Leafy spurge (Euphorbia esula) is an upright plant that grows up to three
feet and has yellow flowers. It can survive in a wide variety of conditions,
but spreads most successfully in areas that have been grazed. Leafy spurge
can reduce pasture and rangeland quality dramatically. It is estimated that
leafy spurge causes a $35 million to $45 million loss each year in U.S. beef
and hay production. Most likely, multiple types of leafy spurge were
imported to the United States at different times from Europe and Asia.

It has been documented in sixteen counties, mostly in
eastern Washington and, to a lesser extent, around Puget Sound.

It is poisonous to some animals, and most will not even eat it.
Low levels of leafy spurge will discourage cows from grazing in a pasture.
Additionally, it can cause blisters on humans. It also infests
croplands, withstands cultivation, and may impact recreation areas.

Report a sighting at: https://invasivespecies.wa.gov/report-a-sighting/.
Image via Steve Dewey, USU, Bugwood.org

02/17/2026

Common tansy is easy to recognize in summer, when its tall stems are topped with clusters of bright yellow, button-like flowers. Introduced from Europe, this invasive plant forms dense patches along trails, roadsides, and open areas, where it can crowd out native vegetation. 🌼

While common tansy is much easier to identify during the growing season, its stiff stems can sometimes remain visible above snowbanks in winter. Even when plants aren’t easy to identify, invasive species can still be present along the places we recreate.

Common tansy spreads by seed and underground roots, allowing it to slowly expand over time. Keeping boots, clothing, and gear clean year-round helps reduce the risk of moving seeds between sites — no matter the season.

Whether you’re hiking in summer or exploring snowy trails in winter, make PlayCleanGo part of your routine to help protect native habitats.