Keynote speaker Don Engebretson on "Top 10 Gardening Blunders—and How to Avoid." Other sessions include plants for northern gardens, straw bale gardening, growing herbs, perennials for shade, creating outdoor rooms, garden myths, fruit trees (beyond apples). Vendors, door prizes, silent auction.

Big Lake High School, 501 Minnesota Ave., Big Lake. Enter door "B"

Cost: $25 includes continental breakfast, lunch, sessions, and materials. $30 after April 1

Contact: 763-765-3075; http://www.facebook.com/SherburneMasterGardeners; http://z.umn.edu/gardenexpo.