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


Plant Resources

New! Fall Leaf I.D.

A new online feature to help identify fall leaves. Learn about the season's classic colorful gems or discover a few special finds!

Click here to learn more

Morris Arboretum Plant Clinic

Our free plant clinic service is available from 1:00 - 3:00pm Monday-Friday (except Thursday), located in the Widener Visitor Center.

Samples you wish to be evaluated can be dropped off from 10:00am - 4:00pm. Leave all samples in the Visitor Center with a description of your observation or concern, and how we can reach you.

Contact the Plant Clinic at or 215.247.5777 ext.141

Pennsylvania Flora Project

Department of Botany at Morris Arboretum.

Visit the PA Flora Project website for more information.

Plant Invaders of Mid-Atlantic Natural Areas

Revised & Updated (2010), with More Species and Expanded Control Guidance provided by the National Park Service and U.S. Fish and Wildlife Service.

Visit their website for more infomation.

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Visitor Resources




In bloom


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Become a Member

Family memberships pay for themselves in just 3 visits!

Join Today!

Know Before You Go

For the safety of our visitors and to preserve the structural integrity of our tree collection, climbing or sitting on the limbs of trees is not permitted. Thank you!

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Construction Notice:

Parking Lot Closed Wednesday, July 29 - Friday, July 31, 2015. Out on a Limb garden feature closed Thursday, July 30.

Morris Arboretum’s parking lot is being repaved Wednesday, July 29 - Friday, July 31, 2015. Our parking lot is a demonstration lot for its sustainability. Installed 25 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 Wednesday, July 29 - Friday, July 31, 2015. 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.

Our Out on a Limb garden feature will be closed for maintanence on Thursday, July 30.

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.