Try Olbrich Botanical Gardens http://www.olbrich.org/
Longnecker Gardens http://uwarboretum.org/
Allen Centennial Gardens http://www.hort.wisc.edu/garden2001/
Janesville Rotary Gardens http://www.rotarygardens.org/rotarygardens.html

Hope this helps

Theresa

A really great nursery is the Flower Factory, near Stoughton, south of Madison. They have demonstration gardens, and a very extensive variety of hostas and daylilies, as well as other perennials. You can get the address and directions by googling: Flower Factory, Stoughton. I just realized that they may have been affected by the tornado that hit near Stoughton about a week ago, so you may want to call before you stop in.

I love the Flower Factory. They have the best perennials and at a great price! Check out their website

http://home.earthlink.net/~flowerfactory/

I can't wait until they open in April!

Here is a link that might be useful: The Flower Factory, Stoughton, WI