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LIU Post Community Arboretum

LIU Post ArboretumLIU Post is nationally recognized as one of the most beautiful college campuses in the nation. The scenic campus is famous for its magnificent formal gardens, rolling green lawns and 4,000 trees -- some among the largest on Long Island. A 40-acre portion of the campus is designated as an arboretum which features more than 125 trees (some very rare). Each tree is labeled with interesting horticultural facts and origin information. The trees are located along a self-guided walking trail that encircles the campus' main academic buildings. One of the landmarks along the trail is the breathtaking Tudor mansion that was once the home of cereal heiress Marjorie Merriweather Post. The arboretum is open to the public seven days a week from dawn to dusk, free of charge. The self-guided walking trail starts and ends at Hillwood Commons and lasts anywhere from 30 to 45 minutes.

Arboretum Facts


Total Trees on Campus 4,000 on 307 acres
Number of Species 120
Total Trees in Arboretum 126
Number of Species in Arboretum 71
Number of Tulips and Daffodils 75,000



  • Tulip tree (105 feet tall) located between the Central Power Plant and the south entrance of Tilles Center. It is a survivor of a lightning strike that left a very long narrow scar in the bark.

Most Unusual


  • Tabletop Scotch Elm on the north side of the Administration Building is two trees (from the Elm family) grafted together. The top half has a smooth bark, while the bottom half is grainy and rough.

Other Unusual


  • Cucumber Tree near Lorber Hall, which has large leaves that resemble the shape of cucumbers.
  • Japanese Pagoda Dogwood Tree located near Tilles Center. Blooms quite late in the summer which is a welcome change since native trees all bloom earlier here.



  • White Oak at the Sculpture Building has a girth of 14 feet.



  • White Oak in front of Sculpture Building is over 100 years old.



  • Black Walnut located in the lawn area on the northeast side of Humanities Hall.
  • American Elm in the Administration courtyard (over 89-years-old).
  • Blue Atlas Cedar near the Dollhouse.