Garden Classes in Washington, DC

This class will take place online. Registered students will receive login instructions. Explore the basic principles underlying successful, environmentally friendly gardening, including the structure and physiological processes of plants and their relationships to the settings in which they grow. Students learn not only what to do, but why. Topics...

Do you think you lack a green thumb? Do you have trouble keeping plants alive? Explore the captivating world of succulents. We will discuss needs and care techniques of common succulents and cactus, what succulence in plants really means, and other examples of low-maintenance arid plants. This class will be taught online via Zoom. All registrations...

This class will take place online. Registered students will receive login instructions. This two-day course covers proper pruning techniques for maintaining shrubs, evergreens, hedges and trees. Recommended tool choices and their maintenance will be discussed. Shrub pruning demonstration included.

Discover the basics of sensible organic gardening. Find out how to build good soil, what you need to know about amendments and fertilizers, and tricks and tips for beautiful gardens, even in containers and tiny spaces. Learn about water-saving irrigation, how to start seeds and nurse them into healthy seedlings, and how to pick the best transplants...

This session will cover dormant season pruning and transplanting for specific plant types, winter weeding and garden care, best tools and practices, and planning ahead for the new growing season. Though it seems there isn't much to do in the garden over winter, dormant season tasks can set the stage for a good gardening year.  When weather...

This class will take place online. Registered students will receive login instructions. Fresh from the release of her new book, The Complete Book of Ferns, Mobee Weinstein- NYBG's Foreman of Gardeners for Outdoor Gardens-will show you how to choose the right species of ferns to group together into a lush, living arrangement. Become familiar with...

This class will take place online. Registered students will receive login instructions. Discover how to reproduce the plants you love! Learn the best ways to create cuttings and make divisions for propagating different species. We'll discuss what rooting material to use and how to care for your new plants as they grow.

This class will take place online. Registered students will receive login instructions. Explore how to grow plants without soil using hydroponics, which promotes fast growth and requires less water and space than conventional gardens. You'll learn what systems work best, which plants to choose, and how to make sure they get proper nutrition. While...

Learn tips and techniques used by professional gardeners through a combination of lecture and hands-on activities. Acquire solid gardening skills and determine best management practices. Topics range from general grounds maintenance, winterization, and plantings, to other horticultural practices. Portions of this class will be taught online via Zoom....

This class will take place online. Registered students will receive login instructions. Whether in a shady corner or a sunny border, selecting the right plant combinations makes the difference between a ho-hum garden and one that gets rave reviews. Concentrating on perennials, learn to use color, texture, height, and bloom when combining plants...

This class will take place online. Registered students will receive login instructions. Study the entire cannabis growing cycle, including best practices for critical harvest and post-harvest procedures and how artificial lighting and carbon dioxide enrichment can help maximize production. We'll discuss the pros and cons of different grow sites and...

This class will take place online. Registered students will receive login instructions. When winter winds blow cold, bring nature inside with houseplants that provide fragrance and color year round. Learn the full range of indoor plants with scented flowers and foliage: citrus, jasmines, hoyas, passionflowers, geraniums, orchids, herbs, bulbs, and...

This lecture will take place online. Registered students will receive login instructions. Founder and owner of Pine House Edible Gardens, Leslie Bennett designs, builds, and maintains edible and culturally resonant landscapes that are beautiful and productive. The gardens she creates provide visual, physical, and cultural inspiration-along with nourishing...

This class will take place online. Registered students will receive login instructions. Explore the philosophy and history of the organic method, the biological principles upon which it is based, and the practical techniques used to implement it. This course will cover a broad number of topics including how to build and maintain soil health, encourage...

This class will take place online. Registered students will receive login instructions. Spring cleaning in the garden can be fun. Get shrub and herbaceous borders spruced up and looking good! Review a checklist of tasks to be performed during spring maintenance, ranging from raking off winter mulch to looking for signs of winter injury and noting...