Talks and demonstrations on three properties in the Morningstar Ranch area cover aspects of xeriscaping, including rain water harvesting, natural pest control, native plants, sustainability issues, container gardening and silk-flower arranging from 10 a.m. to 3 p.m., Saturday, May 7. $25; $20 member. Maps and directions are provided. Refreshments are free at each stop. Call for reservations and more information.