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  • What's happening at Retzer Nature Center.

    The Nature Center is alive with color. Come for a visit and see the landscape's artistic display.

    Retzer Nature Center's Bird Seed Sale
    Great Prices through October 31st.  
    Limited supply - Order Now!

    Retzer Nature Center newsletter • Summer 2016

  • Retzer Nature Center
  • Retzer Nature Center

    S14 W28167 Madison St
    Waukesha, WI 53188

    (262) 896-8007

    Road Construction Alert 
    Madison St. is now closed for bridge work. Our guests coming from east of Retzer Nature Center, check out this slightly different route. If coming from the west please use this route. 

    Nature Center Grounds

    Sunrise to 10 pm (Year-Round) 
    Visitor Center:
    8 am - 4:30 pm (Daily)

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    Retzer Nature Center was John and Florence Retzer’s retirement home. John purchased the original 90 acres from the Federal Land Bank in 1938. The Retzer’s immediately began restoring the degraded land with over 26,000 trees, shrubs, and flowers, many obtained from the Wisconsin Conservation Department. These plantings can be enjoyed today. In 1973, Florence Horn Retzer bequeathed her property to Waukesha County for park purposes. Her vision was "to conserve the scenery, natural life and wildlife, leaving the land unimpaired for the enjoyment of future generations."

    Guided by Mrs. Retzer’s wishes, the Waukesha County Park System began developing a nature center in 1974. Significant land acquisitions in 1980 and 1984 expanded the site to 335 acres. The Nature Center focuses on environmental education, natural land management, community restoration, and wildlife habitat improvement. Today restored prairies, a colorful butterfly and rain garden, and an oak opening demonstration area greet visitors and compliment the Retzer’s original homestead. The Retzer Environmental Learning Center and Charles Z. Horwitz Planetarium addition opened in May of 2005.
    Rules & Regulations
    - Please stay on established trails.
    - Wildlife is easily stressed, do not disturb dens or nests.
    - Please respect the grounds by leaving plant and other natural materials for others to enjoy. Removal of plant material with naturalists permission only.
    - Sorry, bicycles are not allowed on Nature Center lands or trails.
    - Please park bicycles in bike racks.
    - Dogs, pets, or horses are not allowed.
    - Fires and alcoholic beverages are not allowed.
    - No hunting, shooting, or littering.
    - Please be considerate of other visitors.
  • Online Registration is now available for
    Retzer Nature Center Public Programs


    Waukesha County Environmental Education
    Activity Guide
    August 2016 - February 2017

    Ecological Landscape Workshops(2)
    Where: Retzer Nature Center
    From: 10/22/2016 9:00:00 AM To: 10/22/2016 11:00:00 AM


    Tick Control- Managing Your Property

    Adults  Fee: $8   Register by: Tuesday, October 17

    Tips and tricks concerning how to reduce your exposure to ticks and mange your yard, lowering the risk of Lyme Disease. 


    Wee Wonders(18)
    Where: Retzer Nature Center
    From: 11/8/2016 9:30:00 AM To: 11/8/2016 10:30:00 AM


    Ages: 2-4 year olds Fee: $4.00 Register By: Friday, November 4

    "Nuts to You"  Pretend to be a squirrel and see how many different kinds of nuts you can find. Will you be prepared for the long winter ahead?


    Retzer Rangers(3)
    Where: Retzer Nature Center
    From: 11/14/2016 4:30:00 PM To: 11/14/2016 5:30:00 PM


    Ages: 5-7 year olds  Fee: $4.00  Register By: Friday, November 11

    "Harvest Time"  Let's hike the trails in search of the bounty of fall: which animals are feasting now, what they are eating, and who is stashing away food for a meal later?


    Retzer Rangers(2)
    Where: Retzer Nature Center
    From: 12/12/2016 4:30:00 PM To: 12/12/2016 5:30:00 PM


    Ages: 5-7 year olds  Fee: $4.00  Register By: Friday, December 9

    "Preparing For Winter"  Learn about how all living creatures at Retzer prepare for a long winter...do they stay here or do they travel far away? We will also create a treat for our winter winged friends. 


    Wee Wonders(19)
    Where: Retzer Nature Center
    From: 12/13/2016 9:30:00 AM To: 12/13/2016 10:30:00 AM


    Ages: 2-4 year olds Fee: $4.00 Register By: Friday, December 9

    "Wild Safari"  No stuffed animals will be harmed during this adventure; off to the wilds of Retzer, as we hunt for the untamed creatures hidden along the trails. 


  •  NEW Online Services

    Retzer Nature Center's Bird Seed Sale
    Great Prices through October 31st.  
    Limited supply - Order Now!

    Reduced Rate Annual Stickers are available Sept. 16 (at park location and online)

    Resident: $16.00
    Senior: $10.00
    Non-resident: $21.00

    There is no discount for additional stickers or 
    Lake Access.