In May 2015, UNL planted two Flower of Kent trees on the west side of Jorgensen Hall, home of the Physics & Astronomy Department. Landscape Services cloned the two trees from the original Flower of Kent tree granted to the university in 1991. Also called Newton’s Apple Tree, UNL's first Flower of Kent tree can be found on the southwest corner of Behlen Observatory.
UNL received its Newton’s Apple Tree thanks to Edward Lyman, retired Lincoln-area physician, and Joseph Young, a retired UNL horticulture professor. Lyman and Young reached out to University of York professor Dr. Richard Keesing, who had researched the apple tree’s history. Keesing found an apple tree on Isaac Newton’s home estate in Woolsthorpe, England which closely resembled the legendary tree that inspired Newton’s law of gravitation. A graft of Newton’s Apple Tree was brought to York, and then a cutting from that tree was transported to the US and planted next to Behlen during a ceremony on April 4, 1991.