Ever wish you could make more of your favorite plants—for free? Welcome to the magic of plant propagation! In this hands-on talk, we’ll dig into the basics of making new plants from seeds, cuttings, divisions, and more. Whether you’re a seasoned gardener or a curious beginner, you’ll learn simple, practical techniques to multiply your plants and grow your garden. $20 ($25 for not-yet-members) Register Online

Ever wondered what it takes to grow plants year-round in a greenhouse? Whether you’re new to greenhouse use or looking to improve your setup, this class will give you the foundational knowledge you need to succeed. $20 ($25 for not-yet-members) Register Online

What is an invasive plant? Do you recognize these invasive plants? How do you get rid of them? Dr. Laurie Fox with Virginia Tech will answer all these questions and more in her presentation on managing these difficult plants in our landscapes. $20 ($25 for not-yet-members) Register Online

Come learn about moths with an indoor presentation slideshow of many local moths and how to attract them. There will also be mounted specimen displays of both local and tropical moths as well as live moth caterpillars. A Q and A session will follow the presentation. Participants will then move outside to see what species of moths are attracted to sheets using both UV and mercury vapor lights. A bait station will also be set up for moths that are not particularly attracted to lights and the use of a backlight flashlight will be shown as a way to locate caterpillars. $20 ($30 for not-yet-members) Register Online

This class is sold out. To be added to the waitlist please email registrar@nbgs.org.

In this class you will learn about the day-to-day cultivation side of mushrooms. How we operate as an urban farm. As well as teaching about the composition of mushrooms along with some of their nutrients and bioactive compounds. Participants will receive information on where to meet after registration. $20 ($25 for not-yet-members) Register Online

What if the ground beneath our feet could hold more water, grow healthier plants, support wildlife, and feed families — all at the same time? This interactive program examines how bison—North America’s historic keystone grazing species—soil health, and regenerative agricultural practices work together to restore ecosystem function. Using real-world examples from both the American prairie and coastal Virginia, participants will explore how land management influences water retention, plant vitality, and ecological resilience. Through hands-on demonstrations and locally sourced soil comparisons, the program connects soil health directly to flooding. $20 ($25 for not-yet-members) Register Online

In this class we will cover basic fermenting principles and begin two ferments. You will be provided with a fermenter and produce from Fritillary Farm for an in-person instruction in your first fermentation. $55 ($65 for not-yet-members) Register Online