* The Arboretum will be closed Sunday May 27 for a private event*
Welcome to Bailey Arboretum
Bailey Arboretum is a beautiful 42 acre accredited arboretum located on the North Shore of Long Island in Lattingtown, New York, situated on the estate of renowned horticulturist and philanthropist Frank Bailey.
Bailey Arboretum is open to the public 7 days a week, year round. Community and educational programs are offered throughout the year. Bailey Arboretum provides visitors well marked trails, gardens and the freedom to stroll the beautiful grounds. We don't charge admission or parking fees so please come enjoy one of Long Island's most beautiful historical treasures.
Entrusted by Nassau County to steward the 42 acre arboretum created by Frank Bailey over a hundred years ago, Friends of Bailey Arboretum endeavors to access this growing collection of exotic and native shrubs and trees to the public. We seek to draw a range of visitors to learn, study, experience, and celebrate this beautiful setting.
We maintain the grounds and the buildings, provide identifying and historic signage, provide paths and walkways through the property, hold seminars and nature walks, provide educational programs to visiting groups, invite local universities to conduct studies here and hold community festivals related to nature that support the arboretum.