The leaf color is not an indicator of the flower color.

Yes, but wouldn't a batch labelled 'yellow non-stop' all have at least more or less the same leaf color? I don't really know, 'cause it's been many years since I lived in a climate where I could grow tuberous begonias, but still--

I would expect they would all look the same if they're supposed to be the same thing, yup. Who knows, maybe they'll all be yellow anyway. I'll post pics when they bloom.

I bought a batch of yellows from Harbor Gardens a few years back and they are different. Some of them are dark and some light (leaves that is). Even the flowers are not consistent. One has gorgeous frills and some are full doubles and others are not. Let us know.

Will do, Bmchan.