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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

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

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. The Cook's Garden Team will discuss harvesting the vegetable garden and key food safety practices. 

Click HERE to register

September 8- Native Shrubs for the Home Garden, Cover Crops for the Vegetable 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 is right for your landscape. Learn about the different cover crops that protect your garden over the winter, and pick up free samples.  

Click HERE to register

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. 

Click HERE to register


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. See the Master Gardener Training page 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:

Port Potomac Community Clubhouse
Saturday, July 28th, 2018, 10:00-12:30
16201 Navigation Drive
Woodbridge, VA 22192

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 

Click HERE to Register

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



Getting Your Landscape Ready for Fall

Saturday, September 22, 2018, 1pm – 3pm
485 Harbor Side St, Harbor View Room – Belmont Bay
Woodbridge VA. 22191
Virginia Cooperative Extension Prince William staff and volunteers will offer research-based information for getting your lawn and landscape ready fall and winter months. Topics covered will be:
Fall lawn care and bed maintenance, Pruning do’s and don’ts, Annuals, Perennials and Bulbs, Soil health, Container Gardening.

Click HERE to register

This class is free, but please register so we can ensure enough seating and handouts. Please register at 703-792-7747 or 

Irises: Collection & Care

by Ross Eagles, Master Gardener Volunteer
Saturday, October 6, 2018
10 am to 12 Noon
Sudley North Government Building
Jean McCoy Conference Room
7987 Ashton Avenue
Manassas, VA 20109

Sponsored by Master Gardeners of Prince William Education Committee

Click HERE to register

 This class is free, but please register so we can ensure enough seating and handouts. Please register at 703-792-7747 or 


Getting Your Garden Ready for Winter

Saturday, November 3, 2018
1:30 – 3:30 pm
Potomac Community Library
2201 Opitz Blvd, Woodbridge, VA 22191
Your yard can be a haven during fall and winter months for beneficial insects, birds and other creatures. Join Virginia Cooperative Extension staff and volunteers for a classroom and hands on class to learn how to prepare your landscape naturalized for colder days, while protecting critical habitat for a healthy, low input yard. A portion of this class will be held outside, so please dress for the weather. Join us for this free lecture and hands-on demonstration.  

Click HERE to register

This class is free, but please register so we can ensure enough seating and handouts. Please register at 703-792-7747 or


Basics of Gardening Series 2019

January 12, February 16, March 9, Snow date March 16. Saturdays, 1:00—4:00 pm. Held atChinn Park Regional Library 13065 Chinn Park Dr. Woodbridge, VA Topics include botany, soils, seed starting, containers, and rain gardens, turf, ornamentals, trees and shrubs and native plants, weeds, insects and integrated pest management. Registration opens December 1st.

Vegetable Gardening Series 2019

February 16, 23 and March 2, Snow date, March 23
Saturdays, 10:15 am – 1:15 pm
Held at Haymarket-Gainesville Library
Topics include Siting the Garden, Soils, Cover Crops, -Planting Calendar, Rotation and Succession, Vegetable Profiles, Managing Pests, Containers and Small Spaces, and Compost. 


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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