Telephone (203) 432-6320  Email Via our Contact Us page


Unless we are hosting an open house or other off-hours event (calendar), the greenhouses are open to the public free of charge from 9:00 AM to 5:00 PM Tuesday through Friday. We have found that directed tours, led by volunteer docents, provide the best experience for our visitors. Every Tuesday and Thursday, we have arranged for volunteer docents to provide tours, starting at eleven, twelve and one o’clock. Please call ahead to ensure availability.

Also on the last Sunday of the month, we open our doors from ten o’clock to three, with tours at ten, eleven, one and two. Please join us with the whole family. Admission is free of charge. Please note: Because of the holidays and mid-winter recess, we will not be offering last Sunday of the month hours in November or December. We will pick this program back up in January. Also, because of staffing issues and docent vacation, we will not be offering open hours on the last Sunday of June and July. Join us again in August!

The outdoor gardens are open all the time, but we do ask people to respect the grounds by picking up after your dogs, not littering and not disturbing the plants and other wildlife you might encounter here in our garden.


By entering the address (265 Mansfield Street, New Haven, CT 06511), all GPS systems will bring you to our door. For those who know Yale and New Haven, Mansfield Street is parallel to and to the west of Prospect Street and Whitney Avenue, two major north-south arteries for Yale and the Science Hill area. At the corner of Prospect Street and Hillside Place, turn west on Hillside, going down the hill one block to Mansfield, and turn right. The first opening in the fence on the right is marked by our sign.

From Campus (Blue Bus or Walking)

Marsh Hall is the closest landmark to the Blue Bus route up Prospect Street. The nearest stop is located across from the garden and Marsh Hall. Walk down the hill from Marsh Hall, past Greeley Laboratory to the greenhouses and office at the bottom of the hill.

A pedestrian entrance to our garden is a gap in the hedge at the corner of Prospect Street and Hillside Place. The gap is just to the north of the intersection, where the Yew hedge ends next to a Buckeye Tree (Aesculus species). Follow the path towards Greeley Memorial Laboratory, but head down the hill to the greenhouses below. The entrance is on the far-side of the greenhouse complex.