Episode 36: Phenology Throwdown for November 2018


As leaves fall from trees, the sugary sap that was produced during photosynthesis is stored within trunks, branches, and roots. Storing this surplus helps trees survive the winter and allows them to prepare for the following spring. High sugar content protects sap from freezing, but that doesn’t mean that trees are freeze-resistant. Daniel describes the frost cracks that can occur when trees freeze.

frost cracks on linden trees (Tilia sp.) via wikimedia commons

Pansies are not weaklings. Casey offers a strong defense of these tough plants that bloom well into the winter with little care or attention. What other plants do you know that keep blooming even into December?


This episode aired on Radio Boise in November 2018 and featured music by Toy Zoo.

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