Jeffers Foundation

PHENOLOGY

Phenology

Second Week of September

Patches of red foliage appear on sugar and red maple trees, sumac shrubs, and Virginia creeper vines. Yellow to golden-yellow pop up on some paper birch, native basswood, and eastern cottonwood leaves. Look for the first common milkweed pods to open and shed their seeds on silver-white carriers. Ohio buckeye fruit is falling and the nuts are a shiny chestnut-brown. Mature black walnuts and butternuts drop in numbers. Mid-September is harvest time for Marquette and LaCrescent, two wine grape cultivars released by the University of Minnesota. Most ruby-throated hummingbirds leave northern Minnesota by the 12th and southern Minnesota by the 25th, but keep those sugar-water feeders up until you're sure they are all gone.

September 10, 2016 - With above normal summer rainfall, mushrooming was fantastic, including oyster mushrooms, puffballs, coral fungi, sulphur shelf, and earthstars.

LOOK FOR

What to Look For 09, 2018

Last Baltimore oriole leaves to winter in Central America (from Minnetonka):
2016 September 14
2015 September 9
2014 September 17
2013 September 14
2012 September 8

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