When Leaves Start to Fall?

Tree leaves will start falling either early or late October – about a week after peak color. Leaf Fall Dates in the Midwest: Expect leaf color to be the best around mid-October. Northern Minnesota, Wisconsin and Michigan will see this a bit sooner in early October.

Why do leaves start to fall?

The short answer is that leaves fall off trees when they aren't doing their job any more. A leaf's job is to turn sunlight into food for the tree. To do this, the leaf needs water. ... When the leaf is empty, the tree stops holding onto it and it falls to the ground, or blows away in a gust of wind.

What is it called when leaves start to fall?

In the fields of horticulture and botany, the term deciduous (/dɪˈsɪdjuːəs/; US: /dɪˈsɪdʒuəs/) means "falling off at maturity" and "tending to fall off", in reference to trees and shrubs that seasonally shed leaves, usually in the autumn; to the shedding of petals, after flowering; and to the shedding of ripe fruit.