Howard County Master Gardeners

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. 

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

Annual Bay-Wise Garden Tour

On September 17, 1 - 4 pm, you are invited to tour a local garden in Columbia featuring many Bay-wise practices designed to improve the health of the Chesapeake Bay. This lovely and tranquil garden incorporates many native plants into a residential landscape with many mature trees, a woodland garden, storm water mitigation and attractive hardscape areas. Visitors will learn about pollinators and how to protect them, invasive plants and suggested native plant substitutes, storm water management ideas, composting, proper lawn care and mosquitoes! We will also host a native plant sale on site. Please come, enjoy and learn!This is free event sponsored by the University of Maryland Extension Howard County Master Gardeners.  Location is 10009 Hackberry Lane, Columbia, MD.  Click here for handout with information about the garden.  Print and bring it along with you for the tour.


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

The University of Maryland Extension programs are open to all and will not discriminate against anyone because of race, age, sex, color, sexual orientation, physical or mental disability, religion, ancestry, or national origin, marital status, genetic information, or political affiliation, or gender identity and expression.
IET Departmentof the College of Agriculture and Natural Resources. © 2016.