Oswego Lake Watershed Council

OLWC Nature Day Camp

This summer the Oswego Lake Watershed Council is excited to be partnering with Lake Oswego Community Schools to offer a brand new Nature Day Camp brought to you by former Tryon Creek and Portland Water Bureau educators.

When:  June 20 – 24 OR July 18 – 22
Time: Monday – Friday, 8am – 12pm
Where:  Uplands Elementary School Room C-29
Ages : 4 – 6 ( PreK – Kindergarten)
Cost : $250 (scholarships available)
Minimum Participants : 5
Max : 10

This Nature Day Camp will provide opportunities for 4 to 6 year olds to connect with nature through a variety of activities including guided exploration of Springbrook Park, nature based songs, games, and craft projects. Each day of the 5 day session will have a theme that will incorporate ecosystem functions like soil, water, and the wildlife that lives in the urban forest.


2022 Undie planters

The Undies of 2022 have been planted!

What’s This All About?  We handed out 125 pairs of brand-new, 100% cotton undies to 73 families across Lake Oswego this spring and they are now marinating underground until we dig them up in July! 


English Ivy covering a tree trunk

Being a Tree Hero can be easy with OLWC’s Ivy Removal Home Service!

Removing invasive English ivy from your yard can be a tiresome chore.

OLWC wants to make this task easier on you by offering a service in which a member of your urban forest committee comes to your residence and removes tree ivy for you!

Our trained volunteers can also offer education and tools, advice on native alternatives to English ivy and tips on how to manage invasive plants more effectively.


Garlic Mustard

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.

Garlic mustard spreads quickly! It displaces native vegetation needed by wildlife for food and habitat.  Grazing animals avoid it, and its root system releases a chemical that keeps other plants, shrubs, and trees from establishing.



2022 Local Native Plant Sales

Whether you’re planting or planning, good things to know!

Click on the image above to find local sources of native plants, including local plant sales, as well as retail, wholesale and native plant seed suppliers.

For more resources including what plants to use for different conditions (sunny & dry, shady & wet, etc.), you may want to also look HERE.


covid-19 virus


Oswego Lake Watershed Council’s number one priority is the health of our community and volunteers. We appreciate all of you and want you to know that our staff is closely monitoring the spread of COVID-19 and taking appropriate measures to ensure that we are doing our part to promote wellness in the community.


Black Lives Matter

Black Lives Matter

The murders of George Floyd and Breonna Taylor at the hands of the police have reinvigorated national conversations around racial justice, and police violence against Black people. We condemn this racial violence.

Environmental justice is inherently linked with social and racial justice. We cannot have a safe and healthy watershed unless we address the conditions that harm folks who live in our community. We envision a world where a black man can hike through our local parks and birdwatch without fear of surveillance or violence. Where everyone can breathe, and have access to clean air and clean water.