Trees and woody plants might be OK despite mild weather this winter because of fewer daylight hours and temperatures at night remaining below freezing, according to Jeff Iles, chairman of the horticulture department at Iowa State University. "When we plant things that are marginally hardy for the area, that's when you can see winter damage or a reduction in flowering. That's why we continue to harp on planting appropriate plants to your area," Iles said.

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