Waukesha County

Stay tuned for 2023 details



To restore our Earth! We can take care of the planet and Waukesha County, but we need your help!
Join us to hand pull and bag Garlic Mustard in the parks.

Saturday, April 23, 2022
Between 9 a.m. - Noon
The mission will be held rain or shine. Dress for weather conditions, wear boots and bring your own work gloves.
Registration is required by Thursday, April 21, 2022 (see below).


All participants must register for a location below. Free park admission for those participating.
Open to volunteers of various skills, and abilities. See recommended ages below. Adult supervision is REQUIRED for the duration of the project if a volunteer is under the age of 18.

Participants will receive further instructions (video tutorial, map, work report form, and park entry information) the week prior to the mission.



Garlic Mustard
Alias: Alliaria petiolata

This fast-spreading weed is very invasive and is threatening natural areas throughout the park system. Garlic mustard starts growing earlier in the season than Wisconsin's other native plants and outcompetes them. It spreads rapidly in wooded areas, forming tall, dense stands that smother native wildflowers, and native tree and shrub seedlings.

Garlic mustard is a winter annual herb that generally grows 2-4 feet tall. The lower leaves are kidney-shaped with scalloped edges. Leaves feel hairless, and the root has an "S" or "L" shape just below the stem base. In spring, roots and new leaves smell like garlic, and small, four-petal white flowers appear clustered at stem ends, followed by long, skinny seedpods.

Garlic mustard spreads by seed and can self-pollinate. It can produce up to 500 seeds per plant, and the seeds can survive in the soil for up to 7 years, making it hard to eliminate.

View Garlic Mustard Identification Sheet

Watch the Training Video

Garlic Mustard Plant Closeup with small white flowers Grove of Garlic Mustard Plants in bloom with small white flowers

Choose your preferred park location and register. Dress for weather conditions, wear boots and bring your own work gloves. CONFIRM ACCEPTANCE OF YOUR MISSION

The event duration is three hours, but you are welcome to stay for more or less if you’d like!

Headquarters Rendezvous Point
A staff member will meet you there.
Menomonee Park
W220 N7884 Town Line Road, Menomonee Falls, WI 53051
Google Directions
Recommended for ages 13+.
Beach House Register for Menomonee Park

Minooka Park
1927 E. Sunset Drive, Waukesha, WI 53186
Google Directions
Recommended for ages 13+.

Picnic Area 3 Register for Minooka Park

Mukwonago Park
S100W31900 County Hwy LO, Mukwonago, WI 53149
Google Directions 
Recommended for ages 13+.

Picnic Area 1

Register for Mukwonago Park

Muskego Park
S83 W20370 Janesville Road, Muskego, WI 53150
Google Directions 
Recommended for ages 13+.

Picnic Area 4 Register for Muskego Park

Retzer Nature Center
S14 W28167 Madison Street, Waukesha, WI 53188
Google Directions
Recommended for families with young children.

Maintenance Building
* See the other Friends of Retzer Nature Center Earth Week Celebration activities for families going on throughout the day at Retzer Nature Center.
Register for Retzer Nature Center


 Watch the Training Video

Check out all the events going on for Earth Week