History of PGAA

Begun in 1970, this tuition-free, two-year accredited program is offered every other year to sixteen individuals who have obtained a high school diploma and have completed one year of horticultural work.

Trainees work in all horticultural areas of the garden and receive instruction from Longwood staff and outside consultants. Graduates are sought by botanical gardens, commercial horticultural enterprises, and estate gardens. The Professional Gardener Alumni Association (PGAA) was organized in 1976 to promote communication and to disseminate information among its members as well as others in horticulture.

REGISTER NOW for Fall Continuing Education Classes

Browse the course catalog online, and call 610-388-1000 ext. 559 to register.


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Ornamental Vines

Begining Thursday, September 4

Learn the identification and creative uses of over 50 vines suitable to gardens in the Delaware Valley.


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Dividing Perennials

Saturday, September 20

This workshop focuses on the basics of how to divide different types of perennials and when best to do it. Roll up your sleeves, because you'll have a chance to learn by doing under the watchful eye of Longwood Gardener Nick Tomlan.


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Landscape Construction Basics

Saturday, September 27

This intensive, daylong seminar covers the fundamental construction techniques essential in countering the forces that Mother Nature and time exert over man-made garden features. 


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2008 Course Catalog

Follow the link below to download the 2008 course catalog in pdf format. You can also find a complete class listing under Lectures, Courses and Workshops on the left.


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