Okay, so I was starting to think that the sinningia/hummingbird claim was bogus, but I just saw a hummingbird in a S. sellovii. Maybe the plants just need to get a little size on them for the hummers to be interested?

Hummingbirds and gesneriads, two of my favorite things!

Wow me too! I have never put my plants outside...yet

All of my hardy-ish sinningias go outside:
Sellovii and similar
macropoda
leucotricha
tubiflora
Bananas Foster
Arkansas Belle
Lovely

I let all of these except S. leucotricha go dormant in the winter. I grow in a gritty mix in clay azalea pots. I have to be super careful to let the cold nip the foliage, but not a real frost or I'll lose them.

S. sellovii has a great reputation as a hummingbird plant and it is well-deserved!
One day I watched a male ruby-throated hummingbird work over the blooms twice to make sure he got every drop of nectar, despite the fact that he was surrounded by other prime hummingbird plants like Salvia and Cuphea. Then he moved on to the other plants but, before he zipped off to another area, he checked those S. sellovii blossoms one more time. They must be really tasty!

They've also used my Sinningia 'Apricot Bouquet' and Chrysothemis pulchella.
I just got Sinningia 'Lovely' so I'm not sure about that one but I suspect the corolla tube may be too long for them like its S. tubiflora parent. We'll see...

I agree, Hummingbirds and Gesneriads are a wonderful combo!

I saw hummers on my Bananas Foster this week. I'm surprised, since it was divided by my Am Staff puppy earlier in the season. Now I have a perfectly growing larger plant, and a smaller one in bud.

My Sinningia 'Lovely' loves it outdoors. It weathered the 90 plus degrees F temperatures we had recently.

Looks really pretty!