The WashU Arboretum makes campus more livable, healthy, and beautiful, benefiting students and the environment as a whole.

Explore our campus trees

WashU Arboretum

Browse the database of collections of notable trees in our campus arboretum.

Visit TreeKeeper

A view of over 7,000 trees across the Danforth Campus.

Visit Tree Match

A learning tool used to visually identify a tree developed by Toby Utterback, Amee Rothman, and Travis Phulnauth.

News & Announcements

Bloom Photos of the Week 

Bloom Photos of the Week 

May 14 Ashe’s Magnolia Between Rebstock and Wilson, there are a cluster of Ashe’s Magnolia with fragrant, large-cup shaped flowers in bloom. Ashe’s Magnolias are native to North America and much larger than most Magnolia species. Hillman Hall: Calares Garden Terrace Did you know there’s green roof on the third floor of Hillman Hall? Visitors will find […]
Bloom Photos of the Week 

Bloom Photos of the Week 

May 7 Tulip Poplar Located on the north side of Eads and Ridgley, this Tulip Poplar tree was given to WashU in 1991. It was grown from seed from the original Tulip trees planted by George Washington in 1785 at his Mount Vernon home.  Yellowwood The sweet smelling flowers of the Yellowwood tree don’t reliably […]

Campus tree benefits & services


7,076

trees on campus per treekeeper

5M

gallons of water saved

125,329

KWH saved by shading buildings

These trees reduce our greenhouse footprint by sequestering over 240,000 lbs of CO2-equivalent. They also remove over 1,700 lbs of other pollutants from the air.


WashU is one of only ten colleges and universities in Missouri to gain annual recognition as a Tree Campus Higher Education.

WashU holds a Level 3 accreditation by the ArbNet Arboretum Accreditation Program for achieving standards of professional practices deemed important for arboreta and botanic gardens.

Upcoming Events

POSTPONED – Event: TreeKeepers Workshop – May 21, 2025

POSTPONED – Event: TreeKeepers Workshop – May 21, 2025

NEW DATE TO BE ANNOUNCED 10 a.m. to 12 p.m. SCHNUCK PAVILION 202 The WashU Arboretum and Forest ReLeaf, a local nonprofit, are hosting a TreeKeepers course for the WashU community. This class is designed for anyone with an interest in trees, regardless of experience level, and will be taught by Billy Haag, Forestry Manager […]