Hi, I live in the cold tundra of Minnesota, with no green house. Thus I let my tuberouse begonia die back last fall. I put them, pot and all into my cool dark basement, and just left them alone all winter. No water, no light etc.
I am so excited! Today when down there I noticed one of them has started growing, just peaking out of the soil.
Is this a sign I need to bring it up and put it into a nice sunny window? What about the rest of them, should I start watering them and bring them up too?