Give it bright, indirect light, keep it warm, and feed it with African Violet food, and you should keep getting flowers until fall.

Thanks Tug. Two of them are in the ground so I can’t really move the tubers now. They are in part shade but flowered well. I have some organic food with seaweed and I wonder if that would do it? Still self-isolating so am not going shopping at the moment.

Tug, I didn’t realise that there are gloxinia houseplants and I think that is what you are referring to. I’m sorry. I should have been more specific and said ‘hardy gloxinia’ . It has large white trumpet blooms and has a Latin name, Incarta or Incarda.———Can’t remember it just now.

Oops! Sorry, but I have no experience with hardy Gloxinias! Obviously, I also completely forgot about them, too.
Just guessing, but this might help:
www.rhs.org.uk>Plants>Incarvillea-delavayi>Details

If its Tug's suggestion mine flowered only once. Also it gave up after a couple of years...very sad - I read a book about the plant hunter that discovered it - a gripping read.

Thanks for the link Tug. Stera, that does sound disappointing for you, and for me too. Even the leaves are decorative.

Stera, what is the book called? And the author? Sounds exciting ---- well you were excited about it so that's a good recommendation.