Accomplished horticulturist Matthew Gobla will describe plants that attract lots of butterflies but require little upkeep from the gardener. All plants covered require almost no special care and have habits that are easy to control and keep looking good all year long. Advance registration required; www.mobot.org/classes or (314) 577-5140. For a complete list of adult classes at the Missouri Botanical Garden’s family of attractions, visit www.mobot.org/classes.