the world > plants > part of plant > leaf > plant defined by leaves > [noun] > action of putting forth leaves (4)
With reference to a plant, esp. a deciduous tree or shrub in spring: the action of putting out new leaves.
The leafing (of a plant); the process of bursting into leaf; the state of being in leaf.
The process or period of coming into leaf.
the emergence of a leaf or leaves; = leafing, n. 1.