Ozaukee Master Gardeners are certified by the UW Extension thru an online course, textbook and by passing the final exam.  Each year, we do continuing education and volunteer for projects in and around Ozaukee County to retain our certification. 
To become a Master Gardener click the link below.

https://mastergardener.extension.wisc.edu/

In addition, each gardener can join the Ozaukee Master Gardeners, a 501(c)(3) nonprofit organization to gain access to gardening resources, education, projects, monthly speakers, special events, “The Best Dirt” Newsletter, Plant Sale and much more.