I spend a great deal of time outside in the Spring, but only a little of that is spent wandering the woods. We visited my parents at the lake in mid April and enjoyed a couple of hikes. We spied wild leeks and just the barest beginning of the Dutchman’s Breeches (Dicentra cucullaria).
Travel Wisconsin has compiled a number of walks to enjoy the Spring wildflowers. Maybe you can find one near you: http://www.travelwisconsin.com/article/things-to-do/spring-beauties-10-wildflower-walks-that-will-wow-you.