Ongoing

Explore the Cosmos at Hudson River Museum

Take a trip through space in the Hudson River Museum’s Planetarium exploring everything from the mysteries of the moon and the search for life beyond Earth, to the stories that shape our stars.

Don’t Let the Pigeon Drive the Bus! The Musical

Emelin Theatre 153 Library Ln, Mamaroneck

Don’t Let the Pigeon Drive the Bus! The Musical! is even more fun than staying up late and having a hot dog party! It’s not easy being the Pigeon-you never get to do ANYTHING! But when the Bus Driver has a crisis that threatens to make her passengers (gasp!) late, maybe that wily bird CAN…

Discovery Weekends

(families with children ages 3 and up) Explore the Arboretum when the gardens and grounds are alive with the sights and sounds of spring! Drop by the Stackhouse Education Center…

Annual Spring Plant Sale at Van Vleck Gardens

Van Vleck House & Gardens 21 Van Vleck Street, Montclair

Members’ Preview evening: Thursday, May 1st, 5:30 PM – 7:30 PM Public sale:  Friday, May 2nd & Saturday, May 3rd, 9:00 AM – 4:00PM Sunday, May 4th 10:00 AM –…

Annual Spring Plant Sale at Van Vleck Gardens

Van Vleck House & Gardens 21 Van Vleck Street, Montclair

Thursday, May 1st, Members’ Preview evening Friday, May 2nd – Sunday, May 4th Public sale Times and details to be confirmed. Trees and shrubs purchased at our February online sale may be picked up during the Spring Plant Sale. Interested in volunteering to help us prepare for the Spring Plant Sale? Please sign up HERE.…

Let’s Get Growing!: Seed to Salad

(ages 5-10) Rescheduled from May 3 to May 10 If you like digging in the dirt and finding out how things grow, this interactive, hands-on garden program is for you. You’ll learn how to start plants from seeds and discover the interesting things in bloom in our Roehm Greenhouse. We’ll take a hike around our…

History and Highlights of Lasdon Tour

Kiosk Entrance

Urban Naturalist Bruce Rosenberg will lead a walking tour that will focus on the history and highlights of the Lasdon Arboretum. Stops will include examining the William and Mildred Lasdon Memorial Garden, the magnolia trees, lilacs, conifers and azalea garden in addition to learning about the history of the Lasdon main house. Registration required.

Native Tree give away

Lasdon Park 2610 Amawalk Road, Route 35, Katonah

In honor of Arbor Day, Lasdon is giving away native trees. Come to the welcome center between 10 and 12 to get yours. First come first serve until supplies run…

free

Weekly Ground Force Session

(age 14+, age 12-13 with adult) Join Our Horticulture Team! Help maintain and enhance the beauty of our gardens and grounds all year long—spring, summer, fall, and even winter! Volunteer…

Free Saturday Tours

(all ages) Enjoy a Free Guided Tour of the Arboretum Free guided tours of the Arboretum are offered most Saturdays at 10:30 am and 1:30 pm, from April 19 through…