Maryland residents may call our free telephone hotline Monday-Friday, 8 a.m. - 1 p.m. (ET) 800-342-2507

If you live outside of Maryland and have a question for our certified professional horticulturalists, call 1-410-531-1757.

You can also Send a question anytime via our website. Answers will be e-mailed within 48 hours.

Home and Garden Information Center
12005 Homewood Road
Ellicott City, MD 21042