Wintertime Watering in Pots???

[PM239]

Novice needs some advice on how to tell when 30gal and larger pots need watering in the winter???
Especially will plants like many of the annonas that loose their leaves

[Don]

With my eugenias I usually water maybe once every two weeks or when the plants look a bit sad. Overwintering in my area in winter with my eugenias is normally a bad outcome. Plants just rot in mix.