Nice bright sun will keep her looking spiffy. But beware of direct sun, you wouldn’t want to burn those beautiful leaves.
This is a plant who is susceptible to root rot so don’t drown her. Let the top of the soil dry out between waterings and allow ample drainage. Water less in winter.
Being a Brazilian babe, your Begonia is used to some pretty decent humidity. Put her in the bathroom or kitchen or maybe let her chill with some other plant friends. If you are going to mist her, mist the air around her and not the leaves.
This ones a tropical gal so keep her toasty. Anything from 18 – 22 degrees should be spot on. (spot on.. Get it?) She’ll be fine really in most household temperatures, just don’t let her get too cold, anything lower than 15 degrees and she’ll be grumpy.
If you want to see some blooms on your Begonia then feeding her is the way to her heart. You can feed her with house plant food every 2 weeks.
Unfortunately the Polka Dot Begonia is toxic to pets, especially her roots.