Warmth and humidity. They love it. Except for the streps.
other gesneriads in bloom
That's Kohleria "Longwood" And here's another Silver Sheen.
Alas, my streptocarpella has only two lonely flowers. I have been fertilizing it. Is it too hot outside? It's been in the 80s during the day and upper 60s at night. I can bring it inside wherer it will be around 75 give or take a few drgrees, but there won't be much humidity or as much light. What does it want?
Great plants!! I think your Streptcarpella just needs to be cut back a little and possibly fed.The pot may be mostly roots and little soil mix.I am pretty sure it's not the heat.
Lynn