
Long Island Horticultural Society
Sunday October 18, 2026
In the Burns Horticultural Center at Planting Fields Arboretum, Oyster Bay, NY


Speaker: Mary Pigliacelli is the Executive Director Long Island Native Plant Initiative, A Certified Urban Naturalist through the New York Botanical Garden and a passionate native plant gardener whose home landscape serves as a living example of the beauty and ecological value of locally native species.
Topic: Winter Gardening with Native Plants: Collect, Save & Sow
Learn how to collect and save native plant seeds, prepare them for winter sowing, and give them a head start on next year’s garden. This presentation will cover native seed collection and storage, winter sowing techniques, and best practices for maintaining a healthy garden habitat throughout the winter. Discover why leaving fallen leaves, keeping plant stems standing, and providing natural shelter for overwintering insects and wildlife can make your garden more resilient—and more beneficial to Long Island’s native species.
Dates for Upcoming Meetings: November 15, December 13, January 17, 2027