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Events for all interests and ages are sponsored by the herbarium and most are free! Click here for a list of upcoming events. To be added the to the events e-mailing list, send your name and email address to

Plant Identification Services
For identification of unknown plants use the contact information on this web site, or contact Delaware State University's Cooperative Extension Service at 302-857-6424.
Woodland Trail
Elementary, middle schools, and Community Youth Groups can come to DSU's Dover Campus for an interpretive walk on our Nature Trail / Outdoor Classroom and take a tour of the Herbarium.  Contact:  Dr. Susan Yost, Educator, (302) 857-6452.

DSU Arboretum
The DSU campus Arboretum trees and shrubs were augmented by numerous trees planted in the 1960’s-70’s (Dr. N. Dill), 57 trees and shrubs (35 new species, 2/3 native) planted in 2010-2012 by the Herbarium (Dr. S. Yost), and additional trees provided in 2012 by the Arbor Day Foundation, and DDA. We are grateful for assistance from faculty (especially Dr. A. Tucker, and Chairman Dr. R. Barczewski), volunteers (esp. L. Calabrese), student workers (esp. A. Downes, S. Taylor), and staff of the DSU Claude E. Phillips Herbarium, Dept. of Agriculture & Natural Resources, Cooperative Extension; and Facilities Management. Project funded in part by USDA NIFA Capacity Building Program Grant #2008-38820-04790.
The DSU Arboretum became an Accredited Arboretum in the Morton Register of Arboreta, the first in Delaware and at an HBCU, in 2013.
DSU became a Tree Campus USA, the first in Delaware, in 2011. The map is also available for
download from this website.