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Field Notes: Phenology sightings from the month of May

Enjoy this selection from our newsletter archive of phenology sightings from a May of the past. How well do these pheno-happenings match of to what you are seeing so far in May of 2024?



Here's a summary of Indiana's phenology sightings during the month of May. Images courtesy of Amanda Wanlass and Karen Dietrick. Data courtesy of our Indiana Backyard Observers. Thank you so much for reporting your observations in Nature's Notebook!


May 1st to May 11

2 May: Marshall Co. Butterfly milkweed - first report of "initial growth."

6 May: Marshall Co. Bur oak - first report of "open flowers."

11 May: Marshall Co. Black oak - first report of "open flowers."

11 May: Madison Co. Sugar maple - first report of "recent fruit or seed drop."


May 12th to May 18th

12 May: Hamilton Co. Tulip tree - first report of "flowers or flower buds."

17 May: Marion Co. Eastern redbuds - first report of "fruits."

17 May: Marion Co. Bur oak - first report of "fruits."

17 May: Jackson Co. Black maple - first report of "breaking leaf buds."


May 19th to May 25th

19 May: Marion Co. Tulip tree - first report of "open flowers."

19 May: Hamilton Co. Tulip tree - first report of "open flowers."

20 May: Washington Co. Eastern redbud - first report of "fruits."

23 May: Madison Co. Eastern cottonwood - first report of "recent fruit or seed drop."


May 26th to May 31st

26 May: Marion Co. Cutleaf toothwort - first report of "ripe fruit."

26 May: Marion Co. Virginia bluebells - first report of fruits."

26 May: Marion Co. Yellow sweetclover - first report of "open flowers."

28 May: Marshall Co. Bur oak - first report of "fruits."

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