Morris Arboretum

Morris Arboretum

Connecting people, plants, and place.

Notice: Our website is currently undergoing maintenance and information may not be current. For assistance please contact


Magnolia Slope

During the Morrises’ time, this slope and the meadows below it were used for agricultural purposes. Magnolias began to be planted here after the property became part of the University. The oldest specimen on the slope is Magnolia stellata ‘Rubra’ (32-3183*A), a plant that was sent to Lydia Morris in 1930, but not planted until after her death in 1932. This star magnolia was planted as part of early developments of the Magnolia Slope.

The concept of using this north-facing slope for magnolias was enhanced by John M. Fogg, Jr., the Arboretum’s Director from 1954-1967. Dr. Fogg, a founder of the Magnolia Society International, expanded the magnolia collection to study “the adjustment of these interesting plants to our local conditions”. The Magnolia Slope is an evolving part of the Arboretum’s collections, and one of our most beautiful and dramatic spring displays.

Back to top

Back to top

Construction Notice:

Parking Lot Closed September 21, 22 and 23.

Morris Arboretum’s parking lot is being repaved 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 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.

Please note that weather conditions can change quickly, check back or call (215) 247-5777 before heading out for a visit.

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.