Gardening & Horticulture 

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; and basic turf fertility issues.

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, 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.

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.

Dive into the world of exotic and tropical plants and get inspired by their colorful foliage and fragrant flowers. 

Elective Class for Gardening Certificate

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. 

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.

During this special evening, enjoy exclusive evening access to the renewed Waterlily Court as well as a unique dining experience.

Join The Garden Shop team and embrace the beauty of fall by crafting a stunning mini moss wall that captures the cozy, warm, earthy tones and textures of the season.

Dive into various pest and disease management strategies—from conventional treatments to organic and all-natural approaches.

Core Class for the Gardening Certificate

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

Gather info on proper planting, placement, pruning, and care of landscape trees—as well as diseases, insects, and other challenges these trees may face.

Enjoy an interactive class on all things shrubs, an often underestimated but always important component of the overall landscape. 

Elective Class for the Gardening Certificate

Join The Garden Shop team and create a timeless, fall-inspired display inside a glass cloche—preserving the vibrant colors and textures of the cozy season for years to come.

Get a fascinating look at the Chrysanthemum Festival at Longwood Gardens, right from Longwood’s Associate Director of Display Design Jim Sutton.

Grow your knowledge on specific identification characteristics of conifer trees as we focus on plants arranged by family.

Elective Class for Gardening Certificate

Create your own stunning piece of living wall art using air plants and natural materials in this hands-on, creative workshop.

Learn more about this iconic flower as you enjoy a brief history of poinsettias in horticulture, dive into Longwood’s use of the flower, and take in a fascinating overview of poinsettia ecology.