Phenology
To put simply phenology is the timing of a natural process throughout the 4 seasons. A tree has 5 major stages, which I shall detail below:
Stage 1 Spring
Onset of growth (wake up)
Stage 2 Spring
Formation of new leaves (get dressed)
Stage 3 Summer
High photosynthetic period (eat)
Stage 4 Summer – Autumn
Formation of new bark and wood (work)
Stage 5 Winter
Dormancy (rest)