History of Garden Design

History of Garden Design

Online Landscape Design Class
Three people walk down a shaded allee of trees.
Cathy matos

Dates & Prices

December 1–22, 2026


Fee: $185

Fee for Members and Innovators: $166


Registrations may be cancelled up to two weeks before the event, and your registration fee, less a $30 processing fee, will be refunded.

To notify us of your cancellation, email us or call 610-388-5454.

Register by November 24, 2026

Members and Innovators save on Continuing Education Courses

A 10% discount on classes will be applied automatically at the time of checkout. 

Explore the rich history of garden design and discover how gardens have evolved across cultures, regions, and centuries. This course provides an engaging overview of garden design from ancient precedents to contemporary landscapes, examining the ideas, influences, and design principles that have shaped gardens around the world.

Over four weeks, explore garden traditions across the Mediterranean, Asia, Europe, England, and the United States. Consider how culture, geography, architecture, water, art, and social traditions have influenced the way gardens are conceived and experienced—from the monumental landscapes of ancient Egypt and the formal gardens of Renaissance Italy to the scholar gardens of China, the diverse traditions of Japanese gardens, the English Landscape Movement, and contemporary American gardens.

Through presentations, discussion, and opportunities for observation and exploration, you’ll develop a broader understanding of the history of garden design and gain inspiration for considering historic ideas in the context of today’s gardens. Students taking the course for credit will also complete a short project that encourages further exploration of a historic garden design concept or element and its relevance to modern design.

Certificate Information

This class counts as an elective toward the Landscape Design Certificate.

Course Schedule

Tuesdays, December 1–22
6:00–8:00 pm

Location

Online

Instructor

Harriet Henderson

Harriet Henderson is a principal of Cushing & Henderson, a landscape architecture firm in Unionville, PA.  She received a B.S. in Landscape Architecture from Cornell University, was awarded the William F. Dreer Award for work/study of garden design during two years in Kyoto, Japan, and received a Master of Architecture from the University of Pennsylvania.  Her residential and institutional landscape architecture practice emphasizes connections with horticulture and architecture, with design ranging from formal to naturalistic, and Western to Asian.  She has taught a History of Gardens course at the Barnes Foundation for over 25 years, and lectured widely on garden design topics at Haverford College, Morris Arboretum, Pennsylvania Horticulture Society, University of Pennsylvania, and other eastern arboreta and colleges.