University of Maryland Extension

Howard County Master Gardeners

swallowtail butterfly on butterfly weed

NOTE:  All in person Howard County Master Gardener talks and activities are currently suspended.  Our volunteers are under the Stay-at-Home order and will be communicating electronically as needed.  We look forward to being back in the community as soon as possible.  In the interim, please use the online resources and references on this site as well as the Maryland Master Gardener website:

Scroll down for updated virtual coming events and presentations.

Keep Calm and Garden On!

Welcome to the website of the Howard County Master Gardeners.  The mission of the HowardCounty Master Gardeners is to educate residents about safe, effective, and sustainable horticultural practices that build healthy gardens, landscapes, and communities. The Master Gardener program is administered by the University of Maryland College of Agriculture and Natural Resources Extension Service.

Howard County Master Gardeners are volunteers, trained by the university, who provide horticultural education services to individuals, groups, and communities including government agencies, neighborhood associations, non-profit organizations, historic sites, schools and youth groups, senior citizens and garden clubs. Master Gardener programs and services are available free of charge to all Howard County residents and community groups. 

The Howard County Bee City Pollinator Habitat Registration is up and running!  

After installing your beautiful pollinator garden we encourage you to fill out our habitat registration form to include your own "patch" in the Howard County Pollinator Habitat total!   Learn more about our 2025 pollinator habitat goal on HoCo DASH!

WANT A PRESENTATION BY A MASTER GARDENER?  Available presentations can be found on program pages on this website as well as in this catalog.

Upcoming Events (see calendar for full details)

The River Hill Community Association is sponsoring a Fall Master Gardener series of free online presentations on topics ranging from Fall, Winter and early Spring gardening to decorating for the holidays.  Registration is required via

MG Zoom Talk: Forcing Bulbs for Early Spring
Date: 10/12/2020
Time: 7:00 PM
Sponsor: River Hill Community Center
Pre-Registration required:
MG Zoom Talk: Rain Gardening
Date: 11/19/2020
Time: 7:00 PM
Sponsor: River Hill Community Center
Pre-Registration required:  and here for more information.

Rake and Take: Got leaves?  Want leaves? Instead of sending leaves to the landfill, offer them to others in the county.    Here’s how the program works: rakers and takers register annually and indicate how many bags of leaves they have (to get rid of) or how many bags they would like to receive.  Contact Pat at


Below is a link for a video from Columbia MD Watershed Manager John McCoy suggesting another sustainable way to use fall leaves and also to help the environment.

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University programs, activities, and facilities are available to all without regard to race, color, sex, gender identity or expression, sexual orientation, marital status, age, national origin, political affiliation, physical or mental disability, religion, protected veteran status, genetic information, personal appearance, or any other legally protected class. If you need a reasonable accommodation to participate in any event or activity, please contact your local University of Maryland Extension Office.