Explore the Bennett-Johnson Prairie with horticulturalist Julia Bohnen and find out which native species will grow well in your garden at a Minnesota Landscape Arboretum Prairie Garden seminar, 10 a.m. to 12:30 p.m. Sat. The Bennett-Johnson Prairie features waves of Indian grass, big and little bluestem, goldenrod, heliopsis, asters, golden Alexander and many more native plants. Take home a plant for your own garden. Cost is $55; $40 for members. Minnesota Landscape Arboretum, 3675 Arboretum Dr., Chaska. Call 952-443-1422.
Do you want to make your summer garden bounty last all winter? Linda Stewart has been raising organic produce for 30 years and providing vegetables and herbs for Twin Cities restaurants. She will show how to can, freeze and dry herbs and veggies at the class "Preserving Prolific Produce" from 6:30 to 8 p.m. Tue. at the Minnesota State Horticultural Society, 2705 Lincoln Dr., Roseville. Cost is $20; $15 for members. Register at www.northerngardener.org or call 651-643-3601.