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Ornamental Horticulture

Longwood's Certificate of Merit in Ornamental Horticulture is designed for serious gardeners wishing to expand their knowledge of horticulture.

Ornamental Horticulture classes are available for everyone, both those in pursuit of the Certificate and those who are not.

Upcoming Classes

Green Roof Plants

Three session course. Join the movement for environmentally sustainable gardening in your own space.


Six session course. Explore the world of evergreen and deciduous conifer plants, ranging from shrubby dwarfs to towering trees.

Explore identification, habit, and creative uses of vines suitable to gardens in the Delaware Valley.

Edible Plants

Six session course. This course will concentrate on identification, culture, landscape use, and culinary use.

Summer Flowering Bulbs

Focus on the identification and culture of bulbs, corms, rhizomes, and tubers which flower in summer.

Deciduous Trees

Six session course. This course will cover the identification and landscape uses of deciduous trees found in this region.