When did the magnolia tree begin to grow new leaves?

Magnolia usually blooms first and then grows leaves. Now March-April is the full flowering period of Magnolia grandiflora. As soon as the flowering period is over, leaves generally begin to grow and generally begin to fall off at the end of April. Magnolia grandiflora has a young age of 2-3 years, during which no plant hormones can induce it to blossom, which means that Magnolia grandiflora with a tree age of more than two years can blossom.