USING NATIVE PLANTS ... Delmar McComb, a longtime horticulturist and designer of public and private gardens, will teach a class on "Using Native Plants" from 10:30 a.m. to noon on Saturday, March 3, at Common Ground Education Center, 559 College Ave., Palo Alto. McComb will include information on native plants that thrive in the Bay Area, as well as Native American views and approach, including how they use plants as sources of food, dyes, medicines and fiber. Cost is $31. Information: 650-493-6072 or www.commongroundinpaloalto.org
SUSTAINABLE GARDENING ... Master Gardener Candace Simpson will teach a class on "Sustainable Home Vegetable Gardening" from 7 to 9 p.m. on Tuesdays, March 6 to April 17, in Room 1707, Palo Alto High School, 50 Embarcadero Road, Palo Alto. Topics covered include soil preparation, pest management, weeds and diseases. Cost is $72. Information: 650-329-3752 or www.paadultschool.org
SENIORS GET HELP ... Senior homeowners or renters who need help with household tasks can request free assistance from the Realtor Service Volunteer Program (RSVP) by March 15. Volunteer Realtors and other industry-related professionals will spend the week of May 7-11 helping with such tasks as replacing smoke-detector batteries, flipping mattresses or washing windows. Last year 404 RSVP volunteers helped 296 senior households. Information: Visit www.silvar.org to download an application or call the Silicon Valley Association of Realtors at 408-200-0100.
SUSTAINABILITY LECTURE ... Ray Kappe, architect, urban planner and educator, will complete the 2011-12 Los Altos Neutra House Architecture Speaker Series on Thursday, March 8; the lecture will be from 6 to 7 p.m. at the Hillview Community Center, 97 Hillview Ave., Los Altos, followed by a reception from 7 to 8 p.m. at the Los Altos Neutra House, 181 Hillview Ave., Los Altos. Tickets are $20 for the lecture, $40 for lecture and reception. Information: www.neutrahouse.org