As trees in our urban and suburban landscapes prepare for winter dormancy and cold, they
could use a little extra care from you to ensure a good start in the spring. As the seasons change, trees prepare to overwinter in a dormant state.

Dormancy is not death; it is a natural state in
which trees prepare and adapt to cold conditions
with physiological and structural adjustments.
Even though the leaves are changing colors
and falling to the ground, trees are still active,
making necessary preparations for winter.

Winter conditions will make finding moisture a
challenge—and keeping plant cells hydrated in
winter is critical for survival. Potential sources
of winter water include unfrozen soil; internal
reservoirs; and the area above the ground, but
just under the snow cover (the subnivean zone).
If trees cannot find needed water in these areas,
expect poor health and growth the following
spring.

Continue article here: Protect Your Trees