In this case, a signal was misinterpreted and flower development.

Oct 19, Some homeowners and commercial growers have reported apple trees blooming this fall instead of the normal time in spring. Michigan State University Extension educators hypothesize a transient drought stress occurred this summer, causing some tree growth to slow or stop.

Growth resumed later in the summer when renewed rain and increased root growth relieved this stumpcut.barted Reading Time: 6 mins. Jan 28, Longstroth estimated that autumn apple blooming occurs about every four to five years in Michigan, and it also occasionally happens on plums, cherries and other trees. Scattered reports came primarily from apple growers in the southern part of the state last fall, although he did hear of fall bloom on cherry trees, too.

May 21, The chill period is crucial to apple trees in the fall and winter in order to break down the hormones for dormancy. Without enough chill hours, the apple tree will not produce flower buds in the spring, and your apple tree won’t bloom.

As the flower bud begins to form, there is no visible change to the appearance of the bud, but inside of the bud the different parts of the flower begin to form.

For example, a McIntosh apple tree will require chill hours, while a Granny Smith apple tree will only require chill hours, and is more suitable for areas with more temperate weather. Once the required number of chill hours are met, the apple tree Estimated Reading Time: 6 mins.

apple tree blooming in fall