Continuing Education

Take a special look at all things native orchids—from hardy orchids, to native orchids at Longwood and their ideal growing conditions. Sold out. Join the waitlist.

Get an introduction to the fundamentals of plant science—from leaf arrangement to flower structure, basic plant anatomy, and basic taxonomy. 

Core Course for Gardening Certificate

Through a series of lectures and plant walks, this course covers the identification and many landscape uses and benefits of deciduous trees found in this region. 

Elective Class for Gardening Certificate

Fully online. Learn and adapt components of traditional and interpretive Asian gardens.

Elective Class for Landscape Design Certificate

Join us for a lively lecture on topics from planting and care to the different varieties of peonies, then engage in a stroll through the Gardens to see how peonies are on display at Longwood.

Join us for a tour of Brandywine Cottage and Bondsville Mill Park, led by internationally recognized garden designer, horticulturist, and author David Culp.

Learn about the elegant basic arrangement styles typical of the Sogetsu School of Ikebana.

Get an expert take on what makes plants drought-tolerant, and which may be best for your yard.

Nothing beats annuals if you’re looking for a big splash of summer color to add to your garden. 

Elective Class for Gardening Certificate

Learn the best plants to select for your basket, what will thrive in a hanging environment, and how to arrange your planting for the biggest impact.

Explore the technique of crevice gardening, which replicates the exposed and rocky conditions of such environments as mountaintops, deserts, and coastlines. Sold out. Join the waitlist.

Learn essential gardening skills, including garden planning, safety practices, understanding fundamental tools, and mastering key gardening techniques. Sold out. Join the waitlist.

First Required Core Course for Gardening Certificate

Discover the foundations of healthy gardening and explore a variety of soils and alternative growing media.

Core Class for Gardening Certificate

Spend an evening learning more about the local ruby-throated hummingbird and how to attract them to your yard.

See the Gardens from a fresh perspective during this fun and educational evening walk with horticulture expert Jeff Jabco.

Fully online. Dive into the fascinating history of roses, the queen of flowers—and how they came to be known as such.

Join Longwood Gardens and acclaimed photographer and author Ngoc Minh Ngo for an evening celebrating the beauty and extraordinary history of the rose.

Explore elements of Asian design at several local Gardens on this day-long tour. 

Core Class for Landscape Design Certificate

Plant summertime treasures in a container of diverse and contrasting textures. Sold out. Join the waitlist. 

Get a detailed look into plants with exceptional ornamental attributes and resiliency in the garden; native groundcovers and vine varieties.

Elective Class for Gardening Certificate

Master the art and science of plant propagation in this comprehensive, 4-week workshop series.

Core Class for Gardening Certificate

Explore the fertility needs of indoor and outdoor potted plants; annual, perennial, and vegetable garden spaces; a few special needs plants (including ericaceous species and iron deficiencies); and basic turf fertility issues.

Delve into the latest trends about woody plants during this onsite or online conference. 

Take a journey through the story of acorns—from ancient times to future forests, oaks trees have evolved and shaped our world all from these mighty seeds.

Stroll through the Gardens and a take part in a hands-on workshop, where you’ll learn all about evening container gardens—and then make your own.

Learn the care and culture of bonsai, including techniques for designing and maintaining these sculptured treasures. Sold out. Join the waitlist. 

Dive into how gardening techniques can adapt to a changing climate.

Gain the confidence you need to keep your garden thriving in this practical class on irrigation designed for home gardeners.

Learn about common native plants, how to reduce environmental impact through proper fertilization, and discover winterizing techniques that benefit your garden.

Learn about what crops work well for a late season start and get some expert guidance on strategies to keep your garden productive for months to come. 

Take a closer look at meadow gardening, from common plant selections to the steps to successful establishment of a meadow garden.

Create an eye-catching, mini garden perfect for the “pollinator garden curious” that want to welcome pollinators to their backyard, patio, front steps, and more.

Learn why saving seed is important for both the environment and for our communities, and how to set yourself up for seed-saving success.

Learn how to select, plant, and maintain hedges that enhance your landscape year-round.

Explore the variety and beauty of Longwood’s aquatics, and discuss expert tips on integrating aquatics in your own landscape.

Join Vice President of Horticulture at the Pennsylvania Horticultural Society Andrew Bunting as he shares some of the many plants whose eye-catching flowers, attractive foliage, or interesting seed heads can extend your garden’s season.

Discover a variety of drought-tolerant plants that thrive in a dry environment and explore gardening practices that preserve moisture while maintaining a stylish design.

Fully online. Gain a solid understanding of native plants, trees, shrubs, and perennials to then apply to landscape design. 

Core Course for Landscape Design Certificate

Learn management techniques we use here in our Meadow Garden and how to apply them to your own landscape.

Learn how to create your own cottage-style garden at home.

Join recognized experts for a day long conference with an educational focus.