What type of begonia do I have?

Question

I’m not really a flower person, but I was given a begonia when I moved into my new apartment and I’m trying to care for it. I’ve been watering it all spring and summer and it has been growing and blooming. Last night I noticed that the nighttime low was 42 degrees (I think in the 40s for the first this fall) and that I had no idea what to do in the winter. I did some googling and realized I don’t even know what species or type of begonia I have. I felt around in the dirt and didn’t feel any obvious tubers. My questions are these:

1) What species and type of begonia do I have?
2) How do I take care of it for the winter? What do I need to do right now?
3) Do you think its still alive after the cold last night? I noticed the soil was still very wet even though it hadn’t been watered in days. I kept it sitting on a rack outside so all excess water can drain freely.

Answer 1

You have a Wax Begonia. Many people grow these as an outdoor annual plant, but you can winter your plant indoors.
Dead head the spent blossoms and follow the care information in the link below.
https://www.gardeningknowhow.com/ornamental/flowers/begonia/annual-begonia-care.htm