All Day

Mother’s Day Afternoon Tea – SOLD OUT

11:30 am, 12:00pm, 1:00 pm, and 2:30pm You are invited to enjoy an enchanting Afternoon Tea in Wisner House overlooking the Arboretum’s beautiful grounds! Upon arrival, you will be offered a menu of fine teas and infusions. Your choice of tea will be brewed to perfection. Once everyone is settled in, the tiers will arrive…

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…

RRA Plant Sale: May 9 -May 11

Something for Every Garden! Browse a wide variety of beautiful, healthy plants online, then pick up your order during our in-person sale.

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…

Ecotherapy: The Benefits of Nature

Kiosk Entrance

Ecotherapy, also called nature therapy, focuses on improving mental and physical well-being through outdoor activities. Master Naturalist Bruce Rosenberg will lead the guided walk to different areas of Lasdon that will be explored as nature and its benefits are experienced up close. All participants should be prepared to walk, wear comfortable clothing and shoes. Bring…

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…

RRA Plant Sale: May 9 -May 11

Something for Every Garden! Browse a wide variety of beautiful, healthy plants online, then pick up your order during our in-person sale.

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…

Let’s Garden!: Ages 12+, Free Volunteer Event

Environmental Education and Resiliency Center 880 Lake Dr, West Hempstead

Help us plant our back garden!Help us plant our back garden! This program is perfect for anyone interested in volunteerism, gardening, or the benefits of native plants. Participants are encouraged…

Homemade Love for Mom

Lasdon Park 2610 Amawalk Road, Route 35, Katonah

Children will make homemade gifts for Mom just in time for Mother’s Day. Projects include a bracelet, Lasdon sachet and handmade card. Ages 5 and up Registration required

$10

Urban Gardening 101: Gardening for Healing Track (Saturdays)

The Greenhouse and Education Center at Denny Farrell Riverbank State Park 679 Riverside Dr, Greenhouse, New York

Learn the skills to grow your own veggies, make herbal medicines, support wildlife, or simply to green-the-in-between!