How to clean begonia's leaves?
The data I found told me to be careful not to water on the leaves, so I don't even spray on them. As time went by, I can see dust slightly cover the surface. I've tried to brush it off, but it didn't work. I wonder if I can give my begonias a shower just for "once"? I live in subtropical area and it's winter now, about 55~67 F.