Leaves not falling

Asked November 19, 2019, 8:53 AM EST

Why have the leaves stopped falling after the early winter storm and sub freezing temps?

Macomb County Michigan

1 Response

Happening everywhere throughout the Midwest and it's all about the weather.

"You can thank our changing climate for the stubborn foliage that’s causing this year’s late-season leaf crunch", said Laura Jull, horticulture professor and extension specialist for woody ornamentals at the University of Wisconsin-Madison.

"Consider what your trees have been through in the last couple of months. There was that six-week very dry period starting in August. In September, when temperatures normally begin to decrease, it remained warm. Then came really cold temperatures into November, with leaves still on the trees. The layer of tissue called the abscission layer that develops at the base of each leaf stalk, where it connects to a stem, didn’t get a chance to develop, Jull said. It’s that layer that allows the leaf to be shed.

Plants are just growing later and later into fall ... and then they get blasted with cold weather. They’ll eventually fall. It’s just late."

Read more here: https://www.woodtv.com/weather/fall-colors-behind-schedule-in-west-michigan/