How often do you water begonias?

It depends on the type of Begonia - I have a few types - wax begonia's and tuberous begonia's -

wax begonia's will thrive in sunlight very well if they are 'weaned' to it - my dark leaf variety just loves the sun! - and will tolerate a little dryness as well..the green leaf begonia's are pickier and want shade...

Tuberous are my favorite - but the most sensitive to sun and over watering..

I must keep these in bright shade and make sure they have sufficient drainage - for the roots will rot if they sit in water...keep them evenly moist..