Shop for plants selected by Arboretum horticulture experts at this annual sale featuring a wide selection of annuals, perennials, fruits, vegetables, herbs, and trees. (May 8 and 9th) This year we are expanding the native plant varieties. Admission is free, but shoppers need to make reservations on the website and use the entrance at the Farm at the Arb, 3210 W. 82nd Street, Chanhassen, MN 55317.