Bogonia flowers .. first time grower

[MrsBouquet]

I've grown Bogonia flowers for the first time this year in a hanging basket, still got a few flowers at the moment. When does the season end for this flower and what do I do once they stop flowers at the end of season, do they re-flower from the same bulbs next year or do I cut them back or do I disregard them altogether and buy new next year. Thank you.

[carlton23]

Cut them down and allow to dry out in a cool but frost free place, then sprinkle with yellow sulphur, keep in dry peat or similar until spring when you can pot them in new compost. Check occasionally through the winter and if rotting discard.

[coccinelle]

I usually wait until the first frost catches them, like dahlias, then pull them up, break the stalks away and store them as carlton says. By end of February or early March put them into some compost and water, keep away from frosts though. Out of about 9 begonias I always lose 1 or 2 a year but i don't use yellow sulphur so maybe should give that a try.