Unusual Winter Fruiting of Asimina triloba in Southern Ohio
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Phenology
If warming winters start shifting when native fruit trees like pawpaws ripen, backyard gardeners and foragers may need to rethink harvest timing — and local wildlife that depends on this fruit could be caught off guard too.
Pawpaw trees — those native American fruit trees that normally wrap up their season by early fall — were spotted still growing and holding fruit in January, which has simply never been recorded in this part of Ohio before. Three different locations all showed the same strange behavior, suggesting this wasn't a fluke with one tree. Researchers think an unusually long, warm autumn may have confused the trees into staying active well past their normal stopping point.
Key Findings
Fruit development was observed at 3 separate sites through January 2026, with no prior regional records of winter fruiting in Asimina triloba (pawpaw).
Active fruit growth continued despite sub-freezing temperatures, suggesting the trees' dormancy trigger was significantly delayed.
Extended fall warmth is the leading suspected cause, linking the phenomenon to broader seasonal temperature shifts.
chevron_right Technical Summary
Pawpaw trees in southern Ohio produced fruit through January 2026, something never recorded before in the region. Unusually warm fall temperatures appear to have disrupted the trees' normal seasonal shutdown, raising questions about how climate change is reshaping native fruit tree behavior.
Abstract Preview
Multiple observers report pawpaw trees retaining and producing fruit through January 2026, unprecedented in regional records. Trees at 3 sites showed active fruit development despite sub-freezing t...
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