Capturing Conservatories En Plein Air: East Conservatory

Capturing Conservatories En Plein Air: East Conservatory

In-Person Creative Arts Class
A close-up of two art students or artists pointing at and reviewing a landscape painting in progress during an painting class.
William Hill

Dates & Prices

Tuesday, January 20, 2026
10:00 am-2:00 pm

Inclement weather date: Tuesday, January 27, 2026


Fee: $109

Fee for Innovators, Gardens Preferred, and Gardens Premium Members: $98


Fee includes all-day admission to the Gardens on the day the class is onsite.

Registrations may be cancelled up to two weeks before the event, and your registration fee, less a $30 processing fee, will be refunded. Please note that refunds are not available for programs moved to scheduled inclement weather dates. 

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

Register by January 14, 2026

Gardens Preferred, Gardens Premium Members and Innovators save on Continuing Education Courses

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

Pierre S. du Pont, the founder of Longwood Gardens, first opened the historic Main Conservatory to the public in 1921. Since then, Longwood’s gardens under glass have become world-renowned for their beauty and incredible diversity. Explore the incredible indoor plantings of the East and Main Conservatories and use your watercolors, easel, and tools to create a beautiful depiction of your favorite plants—all while gaining expert guidance when you need it.

New to plein air painting? This class begins with an optional pre-recorded orientation covering all you need to know to create a stunning piece.

Location

Conservatory District

Instructor

Diana Heitzman 

Diana Heitzman is an artist who is active in botanical painting. She received a Bachelor of Fine Arts from Tyler School of Art in Philadelphia, and studied at Temple University in Rome, Italy. Post-graduation, Heitzman studied graphic design and advertising at Moore College of Art in Philadelphia and worked as an art director. Heitzman has taught in Cape May County as well as Mt Cuba Center and Center of the Creative Arts in Delaware. She has shown her work in several galleries and completed multiple commissions, including the Wilmington Flower Market Poster. For the past 20 years she has exhibited and sold her paintings at the annual Philadelphia Flower Show. She is a member of the American Society of Botanical Artists and the Philadelphia Society of Botanical Illustrators.