This was a hard winter on plants. It is possible that the upper part of the tree did not survive. The shoots from the ground are suckers and it is an attempt by the still living roots to save itself. The suckers will grow but it's may become more shrub like. This article will help you determine if the upper half of the tree is dead:
https://www.gardeningknowhow.com/plant-problems/environmental/how-to-tell-if-a-plant-is-dead-and-how-to-recover-an-almost-dead-plant.htm