Hi there. I like streptocarpus, too. They grow very happily under my plant light in fall and winter, then set buds and can flower for many weeks in my bedroom in winter-spring. But I killed them by putting them out in our heat- our heat I think is more heat than yours.
Like the cane begonias too, have three kinds at the moment, multiple pots.
Rex, haven't done much with, but would enjoy I'm sure. I do have a small beefsteak.