Morris Arboretum

Morris Arboretum
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Notice: Our website is currently undergoing maintenance and information may not be current. For assistance please contact info@morrisarboretum.org.

Plant Collection

Plant Collection

More than 13,000 labeled plants of approximately 2,600 types are growing in the Arboretum’s living collection. These include representatives of the temperate floras of North America, Asia, and Europe. This historic collection traces its foundation to John Morris’s interest in plants from around the world, and includes plants collected in China by E.H. Wilson at the turn of the century. Many of the Delaware Valley’s "trees-of-record" (the largest of their kind) are found in the Arboretum. Most notable are the katsura, Engler beech, and trident maple. Click here for a tour of our great trees, accompanied by photographs and descriptions.

Staff members have regularly engaged in plant collecting expeditions in Asia and the United States, increasing the diversity of plants available for today’s urban and community landscapes. Currently plants from 32 countries are represented in the collection with a primary focus on Asian temperate species. Significant plant groups in the Arboretum’s collection include maples, magnolia species, native azaleas, members of the witch hazel family, roses, hollies, and conifers.


Help Protect Our Trees

Please note, visitors are not allowed to climb or sit on the limbs of trees. The Arboretum is home to a number of champion trees, some of which are very old. With 130,000 visitors annually, climbing becomes a safety issue for both children and the trees. We don’t want any visitors or trees to break a limb. Thank you!


Seasonal Plants

With the diversity of our collections, there is seasonal interest throughout the year, for all levels of gardeners. Look for the following plants throughout the year:

December through February
Paperbark maple, stewartia, kousa dogwoods, hollies, and rare and unusual conifers of all shapes, sizes and colors.

March through June
Witchazels, winterhazels, magnolias, cherries, maples, dogwoods, rhododendrons, azaleas, crabapples, roses, and stewartia.

July through September
Hydrangeas, summersweet, butterfly bush, chaste tree, sourwood, golden-rain tree, and annual and perennial displays.

September through November
Maples, black gum, sweet gum, dogwoods, oaks and many other colorful trees.

Click here to see the current Bloom Calendar


The Catalogue of Plants in the Living Collection

A catalogue of plants in the living collection is available at the front desk of the Widener Visitor Center. Most of the plants in the Arboretum are labeled and mapped, and this catalogue can lead you to plants in which you have an interest.

Download a pdf of the Catalogue of Plants in the Living Collection

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Alerts & Updates


COVID-19 Response

In response to the unprecedented public health crisis related to Coronavirus (COVID-19), Morris Arboretum will close to the public as of March 14, 2020 until the University of Pennsylvania feels that is it safe to re-open. Learn more about the Univerisity's response on the University of Pennsylvania’s dedicated Coronavirus website: coronavirus.upenn.edu. Please know that this decision was made after careful deliberation and that our priority is to do all we can to ensure the safety and well being of our staff, volunteers, and visitors. Information pertaining to public health is rapidly evolving and, as such, it is not yet known when we will reopen. We will be vigilant in our efforts to keep our website up-to-date and we will communicate directly to members and class registrants via email with the latest details.

The following information is provided in anticipation of some of the questions you may have relative to the following categories:

Individuals who have registered for a class
It is our intention to provide a refund to individuals who have registered for a class that occurs during this temporary closure. We are working as quickly as possible to process your refunds in the manner in which you paid. If you have questions, please contact education@morrisarboretum.org.

Annual Membership
We appreciate your patience at this time. We know that early spring is the most natural time to come out to the Arboretum for a walk in the gardens to enjoy the fresh air, but maintaining public health must be our priority. We look forward to seeing you in the gardens just as soon as we are reassured that it is safe for all of our visitors to return. We will keep you updated on any developments, but in the meantime, if you have any questions about your membership, please contact members@morrisarboretum.org.

Planned Events
Any individuals that have planned events will receive outreach directly from a staff member to discuss your options.

We will continue to update the community as soon as information is available and is consistent with the evolution of this dynamic situation. Questions may be directed to info@morrisarboretum.org.

We appreciate your understanding during these challenging times and we thank you for your support. Please stay connected with us through Facebook, Instagram, and our website.

Resources
Center for Disease Control (CDC): cdc.gov/coronavirus
University of Pennsylvania’s dedicated Coronavirus website: coronavirus.upenn.edu

Unfortunately, Out on a Limb will be closed on Wednesday, January 29th through Friday, January 31, 2020 due to scheduled maintenance.

The Garden Railway will not be operational from 2:00 PM Friday (July 19) through the weekend (July 20-21). The trains will open for normal operation on Monday, July 22nd. Our Train Master reported that the trains will not operate in the excessive heat, citing electrical, track and rolling stock failures.

The Arboretum is open as usual. Click here for hours.

Garden Railway trains are not running Saturday, September 8th and Sunday, September 9th due to inclement weather.

Please note: The Rose Garden is closed for maintenance every Thursday morning until noon.

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.

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