Homeowners learn how to care for trees so that they are healthy and long-lived, from 8 a.m. to noon, Saturday, Oct. 20; free; but reservations are required. Topics include the biology of trees, choosing a location, choosing a healthy tree, planting and caring for young trees, and pruning and irrigating established trees. Tucson Electric Power provides door prizes. Call 837-6932, or email
[email protected] for reservations and more information.