Water. How much to give?
In general, better less than too much. Especially in winter, when the risk of root rot is greater, watering must be made less frequent. To understand when it is the right time to give water there are two simple methods: you can put a finger in the soil and feel if, in depth, it is still damp (and in this case wait) or observe the leaves that, with less water, they tend to be less plump, soft, or fold in on themselves.