What changes occur in plant life in December, January, February.

In hot countries, the slightest changes, and they remain the same, but in the tundra, for example, there are lichens with which the slightest changes also occur. If you take such winters as in Russia. then the following changes can be distinguished:
growth stops (trees), they start to grow more slowly.
Moisture circulates more slowly.
There is also such a phenomenon as “leaf shedding”. Photosynthesis stops, food is minimal.

Plants leave seeds on the ground that will bloom in spring. they do not freeze under the snow, the snow rather protects them from cold and wind.