University of Maryland Extension

Home Gardening

All home horticulture and pest management questions directed to University of Maryland Extension are answered by our staff of Certified Professional Horticulturists at the Home and Garden Information Center (HGIC). This state-wide resource will provide you with free information and consultation services that will help solve your garden, landscape, and pest problems.

Home and Garden Information Center

It's easy to have your question answered via this excellent website - just copy and paste this link into your web browser: and click "Ask Maryland's Garden Experts"

HGIC may also be contacted by calling 800-342-2507 if located in Maryland or 410-531-1757 if located outside Maryland to speak with the HGIC Certified Professional Horticulturists. Hours of receiving phone calls are Monday – Friday, 8am – 1pm.

Or send your questions along with digital images Send a Question. Your answer will be e-mailed within 48 hours! How’s THAT for service!?


EXTRA! EXTRA! Just in time for gardening season* – step right up and get all of your questions answered!

  • Are we seriously going to have cicadas on top of brown marmorated stinkbugs???

  • How do I get rid of those pesky weeds without chemicals?

  • What is the best variety of tomato for a container garden?

  • What is the best time to plant grass seed?

  • Why is my boxwood turning yellow?

  • Is it OK to compost oak leaves?

Everything you want to know (well, almost) about maintaining the plants in and around your yard, identifying and controlling the pests inside and outside of your home…and much, much more!

Visit our new and improved websites!

  • Learn the difference between an annual and a perennial
  • Visit Grow It Eat It for food gardening information
  • Learn how to prepare your soil for planting
  • Find the latest in lawn care and how to reduce hours maintaining your lawn
  • Soil testing information – including a How-to video
  • Right plant – right place. How to select, purchase, plant, and maintain trees and shrubs for your landscape
  • Subscribe to HGIC eNewsletter
  • Visit the Resource Library for: Archived eNewsletters, Featured Plants, FAQ’s, Gardening Glossary, Publications, Tips, How-to Videos, and more!
  • Stay tuned in to the latest happenings via Social Media on Facebook and Twitter!

*Gardening season is considered by many to be a year-round hobby! Catch the fever!

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