* To talk to a master gardener, call 703-324-8556 and leave a message, or send an e-mail to email@example.com. In addition, recorded landscape advice is available by calling 703-324-8700; press 4 for extension information and select a message.
* The Master Gardener Association Web site, www.fairfaxmastergardeners.com, offers links to useful Web pages.
* The year-round diagnostic laboratory is staffed by senior master gardeners. Bring a plant sample to any Fairfax County library and ask the staff to send it to the county extension office. Check the master gardener Web site for instructions on how to collect plant samples and where to drop them off. Samples can also be brought to plant clinics around the county from April through September.
Here are locations and times:
Annandale Farmers Market, Mason District Park, 6621 Columbia Pike. 9 a.m.-noon Thursdays.
Burke Farmers Market, Virginia Railway Express parking lot, 5671 Roberts Pkwy. 9 a.m.-noon Saturdays.
Chantilly Regional Library, 4000 Stringfellow Rd. 6:30-9 p.m. Wednesdays and 10:30 a.m.-1:30 p.m. Saturdays.
Fairfax Farmers Market, Van Dyck Park, 3730 Old Lee Hwy. 9 a.m.-noon Tuesdays.
Falls Church Farmers Market, City Hall parking lot, 300 Park Ave. 9 a.m.-noon Saturdays.
Herndon Farmers Market, Elden and Spring streets, next to Town Hall. 9 a.m.-noon Thursdays.
Kings Park Library, 9000 Burke Lake Rd., 10 a.m.-1 p.m. Saturdays.
Kingstowne Farmers Market, Kingstowne Center, Kingstowne Boulevard, near Uno Chicago Grill, 4-7 p.m. Fridays.
Mount Vernon Farmers Market, Sherwood Regional Library, 2501 Sherwood Hall Lane. 9 a.m.-noon Tuesdays.
Pohick Regional Library, 6450 Sydenstricker Rd., Burke. 6:30-9 p.m. Mondays, 10 a.m.-1 p.m. Tuesdays and 6:30-9 p.m. Thursdays.
Reston Farmers Market, Lake Anne Plaza, off North Shore Drive. 9 a.m.-noon Saturdays.
Tysons-Pimmit Regional Library, 7584 Leesburg Pike (Route 7). 10 a.m.-1 p.m. Saturdays.
Fairfax County Cooperative Extension office, 12011 Government Center Pkwy., Suite 1050, Fairfax. 9:30 a.m.-12:30 p.m. Mondays, Wednesdays and Fridays.
Vienna Farmers Market, 127 S. Center St., behind Town Hall. 8:30-11:30 a.m. Saturdays.
Vienna Farmers Market, Nottoway Park, 9601 Courthouse Rd. 9 a.m.-noon Wednesdays.