Not part of the original Morris estate, the area of the Holly Slope was purchased in 1948 along with Gates Hall, the current administration building. The site was immediately selected as being appropriate for growing hollies, and this collection was mostly planted in the late 1940s and early 1950s, resulting in the mature plants now seen. Additional hollies have been planted over the years and the Arboretum now has one of the largest holly collections in the Delaware Valley.
Parking Lot Closed Thursday, August 27 (Rain Date Friday, August 28), September 21, 22 and 23.
Morris Arboretum’s parking lot is being repaved Thursday, August 27 (rain date Friday, August 28), September 21, 22 and 23. Our parking lot is a demonstration lot for its sustainability. Installed 25 years ago as one of the first of its kind, the parking lot has filtered into the earth about 31,863,304 gallons of precipitation from the Wissahickon watershed. But the time has come for it to be renewed.
The entire parking lot will be closed Thursday, August 27 (rain date Friday, August 28), September 21, 22 and 23. Auxiliary parking will be available at the bottom of the hill (near the kiosk) and shuttle service will be provided to the top of the hill. ADA access will be limited. No buses will be permitted beyond the kiosk.
We apologize for the inconvenience, but we are committed to keeping our parking lot sustainable and our visitors safe. Thanks for your patience.The Arboretum is open as usual. Click here for hours.
Weather conditions may limit garden access to certain features even if the garden is open – please check the web site or call (215) 247-5777 for updates before visiting. Our visitors’ safety in the garden is our top priority. Therefore when inclement weather is predicted, we will make decisions about closing the garden accordingly.