Matthaei Botanical Gardens hosts the American Peony Society’s annual cut flower show.  Award winning peony blooms and floral arrangements will be on display.  Free admission. Saturday June 4 & Sunday June 5, 10am-4:30pm. Matthaei Botanical Gardens, 1800 N Dixboro Rd, Ann Arbor, Michigan. More information at americanpeonysociety.org   W.E. Upjohn Peony Garden celebrates its centennial year in 2022. Matthaei-Nichols staff have a longstanding connection with the American Peony Society, an organization that brings peony lovers from across the country together. Jointly,…