USE LESS WATER ... UC Master Gardeners Bob Weissman and Roberta Barnes will talk about "Saving $$$ by Using Less Water" from 10 to 11 a.m. on Saturday, May 3, at the Palo Alto Demonstration Garden, 851 Center Drive. The free talk will be preceded by a plant sale at 9 a.m., offering many varieties of tomatoes, eggplants and summer and winter squash. Information: mastergardeners.org
CONTAINER GARDENING ... Rose Marie Nichols and her husband Keane McGee, owners of Nichols Garden Nursery in Albany, Oregon, will teach a class on "Container Gardening" from 10:30 a.m. to 12:30 p.m. on Saturday, May 3, at Common Ground, 559 College Ave., Palo Alto. The class will cover organic methods, potting soil, space considerations and best varieties to grow in limited space. Nichols is co-author of "Bountiful Container," a guide to growing edible plants in containers, which will be available after the class. Cost for the class is $31. Information: 650-493-6072 or www.commongroundinpaloalto.org
PERFECT DAHLIAS ... Mimi Clarke will offer a class on "Growing the Perfect Dahlia" from 1:30 to 3:30 p.m. on Wednesday, May 7, at Filoli, 86 Canada Road, Woodside. Focus will be on potting up and planting dahlia tubers. Cost is $40 for nonmembers, $35 for members; participants will take home a Filoli dahlia to plant in their own gardens. Information: 650-364-8300 or www.filoli.org
CHICHI PALO ALTO ... The most expensive real-estate sale in Silicon Valley in March was a four-bedroom, five-bath, close to 4,000-square-foot home in Palo Alto, which sold for $7.5 million, according to the monthly Coldwell Banker Residential Brokerage luxury report. Other tidbits from the report: Palo Alto was number two in luxury sales (more than $1.5 million) with 25, beat out by Los Altos with 35; homes sold on average in 23.1 days; and sellers received an average of 108 percent of their asking price.
GRAY TO GREEN ... The City of Palo Alto is offering a free, hands-on workshop, "From Graywater to Green Garden," from 6 to 9 p.m. on Wednesday, May 7, in Room H-1 of Cubberley Community Center, 4000 Middlefield Road, Palo Alto. Christina Bertea will cover codes, regulations, rebates, what soaps to use and the best plants to irrigate with graywater, as well as how to construct a laundry-to-landscape graywater system. Information (and reservations, because space is limited): 650-329-2241 or tinyurl.com/Graywater-workshop
PLANT CLINIC ... UC Master Gardeners will offer a free "Warm Season Plant Clinic" from 9 to 11 a.m. on Saturday, May 10, at Gamble Garden, 1431 Waverley St., Palo Alto. Topics include choosing warm-weather vegetables and ornamentals, care of tomatoes, watering during the drought, soil types, plant nutrition and organic pest control. Information: Master Gardeners at 408-282-3105, between 9:30 a.m. and 12:30 p.m., Monday through Friday, or mastergardeners.org