In general, angel wing (cane) begonias have a wide range of behavior when it comes to blooming. Some are pretty much always in bloom with even minimal care (since you're from Texas I'll mention B. Texas Teasipper as one you couldn't stop blooming with a baseball bat) and some almost never bloom. As with most begonias, they don't like wet feet or too-dry conditions, they like to be fed lightly with some regularity, and cane begonias especially like some sun to bloom.