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Virginia Cooperative Extension
Horticulture Classes

Environment and Natural Resources (ENR) Classes

Virginia Cooperative Extension Horticulture classes are free (unless noted) and are open to the public. Pre-registration is required for classes. Note that class cancellations are determined by the weather and number of registrations. For more information or to register, call the Extension Master Gardener Help Desk at 703-792-7747 or email. 

 If you are a person with a disability and desire any assistive devices, services or other accommodations to participate in this activity, please contact Martha Giachetti, Prince William at 703-792-6285/TDD* during business hours of 9 a.m. and 5 p.m. to discuss accommodations 5 days prior to the event.
*TDD number is (800) 828-1120.


Upcoming Classes


WEDNESDAY May 30, 2018
5:30 p.m. – 7:00 p.m.
NO ADVANCE RESERVATIONS or TICKETS REQUIRED. Seating is first-come, first-served.
Seminar Room (in the Greenhouse)
6895 Wellington Rd.
Manassas, VA 20109
* FREE SCREENING of selected segments of the film
* Q/A FOLLOW-UP with Carol A. Heiser, Habitat Education Coordinator of Virginia Department of Game and Inland Fisheries
* EXHIBITS by local organizations, with information about native plants and wildlife habitat.
Each Participant will receive a FREE Guide to Native Plants for Northern Virginia
CLICK HERE to view flier

Gardening with Wildlife in Mind

Saturday, June 2, 2018, 10  a.m. – 12 noon, at the Historic Manassas Courthouse Ballroom 2nd floor (Handicap accessible by elevator) 9248 Lee Avenue, Manassas, 20110.  Alonso Abugattas is a well-known local naturalist, environmental educator.

Join us for this free lecture, but please register to assure sufficient seating.

Sponsored by Master Gardeners of Prince William Education Committee 


Saturday in the Garden

See all of our best practices in action with class at the Teaching Garden   9535 Linton Hall Rd, Bristow, 20136.

Taught by VCE - Prince William Master Gardener Volunteers and Staff. 

All programs are free and run from 9:00 am-Noon. Classes are held outdoors, please dress for the weather

June 9 – Container Gardening - Container gardening know-how is in high demand, particularly in suburban settings. Learn how to create a container garden for your patio, terrace, or entryway that is both functional and gorgeous.  Discover techniques for getting your plantings to thrive.  Vegetables, ornamentals, and irrigation will be covered.

July 14 - Spectacular Salvias and Comforting Cut Flowers Get to know the popular cultivars of the genus Salvia that grow well in Northern Virginia.  Also, learn how you can have cut flowers all growing season long

August 11 – Growing Herbs - This class will teach you the basics of growing your own herb plants. Learn the soil, light, temperature, fertilizing, and climate requirements for the basic culinary herbs.  See our herb garden and wall of herbs at the Teaching Garden.

September 8- Native Shrubs for the Home Garden and MGPW Plant Sale There is a native shrub for every location and desired seasonal interest.   This class will help you decide which native shrub for your landscape is right.

October 13 - Fall Weed Identification and Management – This class will focus on common broadleaf and grassy weeds found in our landscapes and turf and includes a walk to see these weeds up close and personal


Introduction to the Prince William Master Gardener Volunteer Training

There will be three information sessions held in August 2018.  Please sign up for ONE session:

  • Monday, August 20, McCoy Room Sudley North Government Center 7987 Ashton Ave. Manassas, 20109 6:30 pm – 8pm. OR

  • Tuesday, August 21, Development Services Building – McCoart Government Complex, Development Services Building 5 County Complex Dr. Prince William, VA Room 202 - 6:30-8:00 pm OR

  • Thursday, August 23,  McCoart Government Center –Powell's Creek Room, 1 County Complex Dr. Prince William, VA 6:30-8:00 pm

Questions? Want to register for one information session? Please call 703-792-7747 or email to register.

Master Gardener Training will be Tuesday and Thursday evenings, mid-September thru December 2018.  There is a fee and a background check is required. Scholarships are available. Contact us for more information. 


12 Steps for a Greener Lawn

Learn how to make the best use of valuable resources – your time and money – while learning about research-based best management practices for turf fertilization, maintenance practices and timings that prevent problems and help protect neighborhood streams, lakes, ponds and ultimately the Chesapeake Bay. Choose from the following dates and locations:

Haymarket-Gainesville Library
Saturday, August 4th 2018, 2:00-4:30
14870 Lightner Road, Haymarket

Central Community Library
Saturday August 11th, 2018, 2:00-4:30 pm
8601 Mathis Avenue, Manassas, VA 20110 

These classes are free, but please register so we can ensure enough seating and handouts.  Please register at 703-792-7747 or




If you are a person with a disability and require any auxiliary aids, services or other accommodations to participate in any of these workshops, please notify Virginia Cooperative Extension at 703-792-6285/TDD PC 1-800-828-1120.



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