Gina, what a pretty Chirita! I grew a few years ago but mine were indoors on a light stand with other Gesneriads. Awhile back, the Genus was changed from Chirita to Primulina but I see it's now back to Chirita again!
Lyndon Lyon Greenhouse has always had a good reputation for it's plants and they have a few(still listed (as Primulina):
http://lyndonlyon.com/store/in...
One of my favorites that I miss was the miniature
Chirita (Metapetrocosmea tamiana) I see Logees has it for sale and I'm tempted to order one.