No sinningia I've grown (including the big florist one) makes much of a root mass.
For your micro minis, I think the only safe thing is a community pot, because there's no pot in the world small enough for one. They tend to naturally seed and produce carpet/drifts. I'm not sure I like that..and I don't currently have any like s. pusilla myself. I have in the past.

I agree with you. A very wide and not deep container under glass is what I have for them now.

If you want a little S. pusilla come spring,,,,let me know. If I still have them I don't mind sharing or trading! Rosie

Well, I dunno, I haven't heard how my last trades (couple years ago) have fared. Must worry about the fate of the children, mustn't I?

Chirp, chirp, Rosie? :)

Rosie - I mostly see S.pusila and friends in glass bowls and such - some perlite on the bottom for drainage - and yes - inch - inch and half of soil at max - and the top of container is sealed with Saran wrap or covered with glass lid. You can see it well - and less chances it will dry.

DB- big tuber Sinningias have the ability to attach themselves to the rocks sending ancoring roots - so when I grow them on the wick and mats...they sure grow all the way through. And while the mass of feeder roots is not that big - and you are correct - these big potatoes crack the pots if not moved a wider pot on a regular basis. Wider, not necessary deeper. Friends in FL needed to move Sinningia sellovii they grew outside for many years because they were installing new AC... they cut the monster with an electric saw and shared the chunks.

Irina I googled S. sellovii so I would know what you were talking about. OMG the size of that ! It is huge! And that tuber is definitely impressive! I don't think I would want one of that size but wow! I will stick with my "littles" for now! And the way you describe growing the "littles" is just about the way I do it. Seems to work well so far !

Dbarron,,,,,Chirping birds???? Rosie

I tried overwintering sellovii and failed :(

You need to tell me if your plants ever progressed to blooming that I sent you. I never saw any recent photos...did you throw them in the toilet and flush? Did they die?

Was the S. sellovii as large as google showed me? It was huge.

Hmmm,,,,ME,,,,,flush a PLANT????? NEVAH!!!!!!!!!!. I will say I almost lost them by chopping them up to much too soon,,,,,remember? I get a flower now and then. I don't take a lot of pix. My intentions are good but I just don't do it. Rosie

What about the other violet I gave you? Cherry Crisp I believe it was ? Yes, I am grilling Rosie in public (lol).

It died. Rosie

Well it was a small offset anyway, oh well. I can't say my mother plants has been the most floriferous either.

S. sellovii ia definitely NOT a house plant. Greenhouse or outside.

I grew it and it bloomed for me - but it needs significantly more light and space to do its best. It sent xlong trailing stems all over with a little bit of smallish tubular blossoms. Foliage is fragrant. Same is with 'Apricot Bouquet' - which has sellovii in a background. Something like that is with S.tubiflora - instead of compact growth with upright longish stems with super fragrant flowers - in home conditions you have a lot of trailing foliage and no bloom. But people who have the climate or a greenhouse - bring bucket size blooming pots loaded with bloom.

Sounds like some kind of plant to be reckoned with! Rosie

WOW!!!! Look at the comparison between that and the "little" to the left of it! Puts it in perspective! Thanks Irina! Rosie

Yes, as I recall the hybrid I had was 2 1/2 feet high or so. They did nicely outdoors, but didn't overwinter :( Mine was a peachy pink.

About right. Next time - put it in a garage for winter. If it grows in a bed - may be pile a wheelbarrow of peat on the top. These things thrive in frost free climates.

Hey Rosie, since repotting my mini sinns at last of October (and they were basically dormant at that time), I have two in advanced bud now! (yah..love these little guys).
Yes, Irina but they were sold as hardy....thought it worth a try. I don't know if I can reaccquire easily, they were a one off at a nursery in Oklahoma that varies their exotics.

Plant Delights nursery closed to my regret... They carried several.

They are like Dahlias or Gladiolas - if you do not lift the corms - it depends on the winter. If the soil won't freeze - they will come back as long as the spot is not too soggy.

When you replant mini sinns, should the tubers sit on top of medium, buried halfway in the medium or slightly under the medium????

They don't really put down too much roots UNDER the soil do they? Rosie

Some Sinningias prefer to grow half submerged, some buried. Mini-Sinningias should be planted shallow but under the surface. If you plant it too deep - it will form another tuber just under the surface - and the old tuber can go blind or die off. Having a fresh tuber is not necessary bad though.

Thanks Irina,,,,,since all I have is the mini sinns I will plant them barely under the surface. My largest tuber is about as big around as a pencil! 3/8 inch at the outside maybe??? The rest are soooooo much smaller. Rosie

Plants Delight is still in operation as far as I know. But I think I know the nursery that you mean that closed a couple of years ago, gesneriad specialist, but I can't recall the name this midnight either.

Did you possibly mean Gary's Out of Africa?

Yeah, Gary Mikita is closed. He had a wonderful selection of Streps and Episcias.

The info I got is that Plants Delight is in a transition to become more of a public botanical garden . So if they are still seling - go for it.

Hmm, I hadn't heard that. It will be a sore loss (even if they're too dang expensive). But they were the most adventurous botanically inclined nursery I know of in the States.