University of Maryland Extension

Free Walk-In Plant Clinics: Ask A Master Gardener

Woman holding flower pots

Gardening Questions?

Montgomery County Master Gardeners answer gardening questions at 13 locations around the County during the gardening season. Bring your full and intact plant and insect samples, garden problems and questions to a location below and get free answers.

For further information call the Plant Help line: 301-590-9650 weekday mornings or send email to

Bethesda: Davis Library, 6400 Democracy Blvd., April-Sept., Sat. 10am-1pm

Burtonsville: Praisner Library, 14910 Old Columbia Pike, April-Sept., Sat. 10am-1pm

Chevy Chase: Audubon Naturalist Society, 8940 Jones Mill Rd.; April-Sept., Sat. 10am-12 Noon Derwood Extension Office: 18410 Muncaster Rd., Drop off plant & insect samples, 8:30am-4:30pm, Mon.-Fri. year-round, lower level. Demonstration Garden Clinic: April-Oct., Tues. 8am-12 Noon

Gaithersburg/Darnestown: Quince Orchard Library, 15831 Quince Orchard Rd., May-Sept., Sat. 10am-1pm

Germantown: Germantown Library, 19840 Century Blvd., May-Sept., Wed. 6:15-7:45pm

Kensington: Farmer’s Market, Train Station at Howard Ave., April-Oct., 2nd Sat. 8am-12 Noon

Olney: Farmers Market, Rt. 108 & Prince Philip Dr., May 12-Oct. 13, Sun. 9am-1pm Poolesville: Poolesville Library, 19633 Fisher Ave., May-Sept., Wed. 1-3pm

Rockville: Central Farm Market, 11806 Rockville Pike, April-Oct, 3rd Sat., 9am-2pm

Rockville: Twinbrook Library, 202 Meadow Hall Dr., April-Sept., Sat. 10am-1pm

Silver Spring: FRESHFARM Market, Ellsworth Dr., between Georgia & Fenton, April-Oct., 3rd Sat. 9am-1pm

Wheaton: Brookside Gardens, 1800 Glenallan Ave., year-round, Sat. 10am-2pm; Sun. 1-4pm; April-Oct., Wed. & Thurs., 1-4pm

Maintained by the IET Department of the College of Agriculture and Natural Resources. © 2018. Web Accessibility