Why Do Ginkgo Trees Drop All Their Leaves at Once? A UNH Expert Explains
Also, a look at a 50-year-old student tradition that offers insight into changing seasons
Wednesday, November 12, 2025
Why do ginkgo trees drop all their leaves at once? And what does UNH’s iconic James Hall ginkgo tell us about how frost is coming later in the fall? Serita Frey, professor of natural resources and the environment in UNH's College of Life Sciences and Agriculture (COLSA) explains the science behind why leaves fall and shares the quirky 50-year-old student tradition that’s given her new insights into our changing seasons.
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