Posted: 21/11/2016 at 14:45
Rainfall is ok, as long as the pots are draining well.
Keeping the roots healthy is the most important thing - if the roots are ok the top will regrow even if it gets frosted.
I don't know why the leaves are dry and crisp - if in the summer it may be under-watering, and if in the winter it may be over-watering.
Fingers crossed that cutting down on the water in the winter will solve the problem.