Does anyone know what catagory begonia Black Hawk is?
Never heard of it but there may be one out there.
I wonder if you meant Black Falcon. I have a picture of it on a much earlier post.
Thats not it, different leaf altogether.
Show us a picture of your mystery begonia and maybe someone can ID it. I scoured the internet for the name you gave and came up empty.
I'll have to learn to do the picture bit-my grandson used to do for me, but alas he has gone home now.