We've grown many dozens of American Chestnuts and back-crossed Chestnuts over the last 5 years. We keep a few in large pots in the city for school demonstrations, but most were planted as seeds in Hampshire County. The trees in Arlington leaf out about 7-10 days earlier than the Hampshire County trees. This photo was taken today. In my studies of tree phenology, I believe that's largely a function of soil temperature, and I've wondered about the variability of temperature in the potted trees' soil. Someday I'll stick a thermochron in there.
We also found this plant last week, and then this week we saw that it was flowering. Anyone have a tip?
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