• The Waukesha County Park System’s Nature Program, housed at the Retzer Nature Center, is recognized statewide for its ecological orientation and experience in applied research on prairie plantings and restoration. Over the history of the Nature Program, we have established prairie nurseries and restoration plantings at Retzer Nature Center and in many of the other parks within the Waukesha County Park System.

    Today, we are able to offer to the public the same high quality native plant material used by Retzer Nature Center for use in school, business, and private plantings. The Nature Program has prairie nurseries and restoration areas at the Retzer Nature Center, Mukwonago Park, Nashotah Park, and Ryan property. These facilities have native plant seeds and transplants available to the public.

  • Plant Information
  • Native Plant Identification

    Need help in identifying a plant found on your property?

    Check out Wisconsin Vascular Plant Species or contact Retzer Nature Center

    The Ecology staff is available to help with your plant identification. Start by taking a photo or cutting a sample of the plant in question. You can either email the photo or drop off the sample to the front desk of the nature center. Please provide the following information when submitting a plant sample: your name, phone number or email, and information on where the sample was found (sun, shade, wet, dry, and soil conditions). This information will aide in the identification of the plant in question.

  • Plant Sale Plus

    Native perennial plants will add a wealth of beauty to any garden. With over 30 species to select from, the Retzer Plant Sale awaits you. Start off the planting season with our Spring Sale. Plants, Compost bins, and Rain barrels are available for pre-order/pre-pay starting in late winter. 

    New for 2016 - Spring Sale & Workshop Event
    pick up your pre-ordered plants and stay for a workshop, from 9am - 1pm on May 7th.

    Sale information is posted on the our calendar.

  • Invasive Species

    Help control invasive species currently found in Southeastern Wisconsin. Learn to identify and manage these unwelcome plants. 

    "Weeding the Way" Quick Reference guide 
    Wisconsin DNR website

  • Site Evaluations

    Not sure what plants, trees, or shrubs are growing on your property? The Conservation Biologist can assist you with identifying vegetation and soil conditions on your site. Fee is depend on level of detail you require for the Site Evaluation. Complete details on a Site Evaluation available. Set up your site visit by contacting the Conservation Biologist today.