As the tree or shrub prepares itself for dormancy, its energy is focused on the roots.
Fall is the time of year when grasses and other plants prepare for winter dormancy.
During dormancy European and Mediterranean plants are given a modicum of water if the weather is very hot.
For example, deciduous trees shed their leaves in winter: geophytes go through a period of dormancy by means of bulbs, rhizomes, or other underground organs with buds; whilst annuals and ephemerals similarly protect themselves by means of the seed habit.
Persistence and Spread: Soft brome seeds have minimal dormancy and are short-lived in soil.