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Arboricultural Tour of Washington Square Park

ARBORICULTURAL TOUR: Learn about how trees grow in different environments and how their seasonal adaptations. This tree outing will be led by arborist Christopher Biden. Join us on Saturday, November 15th at 11 a.m. The event is free but RSVP is required.

Leaves and young acorns of a Swamp White Oak in Washington Square Park on August 9, 2024.

Community Science Volunteer Activities in Washington Square Park

Community Science Volunteer Opportunities Volunteer to observe seasonal changes in trees (aka phenology) in Washington Square Park. Choose any tree on the “phenology trail.” Training is free. Click here to volunteer. Join us on the last Wednesday of each month to count birds and other wildlife in Washington Square Park or in Tompkins Square Park.

American Sand Wasp on orange flowers of Butterfly Milkweed. Photo by Amy Berkov via iNaturalist.

Native Wasp Observed in Washington Square Park on July 1, 2025

American Sand Wasp for Washington Square Park We’ve got a first observation of a native American Sand Wasp for Washington Square Park. The wasp was spotted in the park by Dr. Amy Berkov on July 1, 2025. American Sand Wasps (Bembix americana) can be 16-20 mm long. They are “mostly black with five pairs of white spots forming

Flyer for Washington Square Park Spring Photo Walk on Friday, May 30th, 5:30 PM. Birds and plants featured on the flyer.

Spring Photo Walk in Washington Square Park

We are so excited about this photography event with Katie G. on Friday, May 30th at 5:30 p.m. RSVP now. Bring a friend! We hosted two photography events many years ago. One was led by local photographer Hubert J. Steed who has since passed away. We also hosted an iphoneography workshop with Roberta Fineberg. Stay tuned for more