Garden Maintenance

Garden Maintenance is an in-person horticulture and gardening course at Longwood Gardens focused on keeping gardens healthy, productive, and easier to manage. The series covers plant health, weed management, efficient watering, mulching, and the use of garden structures to reduce ongoing maintenance while improving a garden’s appearance and function.

The course is a core component of Longwood’s Gardening Certificate program and is designed for both experienced gardeners and those beginning to develop their gardening skills. Topics are presented by Madi Walter, an urban agriculture professional with experience in ornamental and edible gardening, farmer and gardener education, conference presentations, and agricultural policy.

When: Mondays, November 2–23, 2026

Showtimes: 5:30–8:00 pm

Tickets: $199; $179 for Longwood Gardens members and Innovators

Registration: Register by October 28, 2026. The member and Innovator discount is applied automatically at checkout.

Venue: Longwood Gardens

Location: Grove Studio 104 and Grove Studio 105

Format: In-person class series

Instructor: Madi Walter, who holds a bachelor’s degree in landscape architecture from Cornell University and a master’s degree in environmental education from Antioch University New England. Walter is the urban agriculture coordinator for the New Castle Conservation District, chairs the Delaware Urban Farm and Food Coalition, coordinates an urban farmer and gardener training program, presents at national conferences, and serves on the Delaware Department of Agriculture’s advisory council on farm and policy.

Admission Benefit: The fee includes all-day admission to the Gardens on the day of the class held onsite.

Cancellation Policy: Registrations may be cancelled up to two weeks before the event for a refund of the registration fee, minus a $30 processing fee. Cancellations can be requested by email or by calling 610-388-5454.