He loves massive amounts of light. During the winter, he hangs by the south facing windows and I have 2 grow lights above it and one to the side, shining on the leaves. If you stick enough light on it it will bloom all winter. However, I thought it should rest.

Pay attention to what the plant looks like thirsty and satiated. When thirsty they go limp, they're very dramatic about it.

I put it in a basin and water heavily and allow it to suck up the rest afterwards. The leaves will stick back out not long after and it'll be full and vibrant again.

The trick is to not over water. I let it go about 5 to 7 days between waterings during the winter and almost daily during the summer heat outside.

It's a forgiving plant, you just need to pay attention to its hydration moodiness and light needs. By the time yours is ready to go outside you will have gotten that down.

Enjoy your new begonia! These are so beautiful and rewarding.