As a comment about
Coleus (Coleus scutellarioides 'Black Prince'),
Sharon wrote:
I love this coleus. I overwinter its cuttings in water on my windowsill in the kitchen. This is the third year. I've noticed it has not bloomed and it's already October. I see no sign of buds. It will be interesting if it survives another winter in my kitchen, but even more interesting to see if it ever blooms again. It's very full, very lush, and the hot dry summer has not bothered it. It's lovely when planted with mint green foliage beside it.