I’m successfully growing Mango, Lychee, Longan, and Orange. But that defines “successful” as “not dead”, instead of “Fruiting”. The only things I’ve fruited indoors are blackberries (Prime Jan, which seem to keep bearing…) and strawberries.
Similar to Ross, I’ve been bringing them outside in the summer and in for the winter. In fact, I just brought them in last night, when the temp dropped to 36. It was a good call, as it continued lower to 32.3F, which probably would have been fatal for some (most?) of them.
My indoor jungle:
Got to be careful around the Orange plants. They have the biggest thorns I’ve ever seen.
One thing which may yet fruit is figs. I got these tiny plants back in August and brought a couple of them into the office. I have a South facing window, which they seem to like. In fact, one of the figs even seems to have a few baby figs growing on it, even though the entire plant is less than a foot tall.
Left: Longue D’Aout
Right: Gris de St Jean (several small figs)