Partly/mostly inspired by the smallish papaya tree at the Quad City Botanical Center, we bought a papaya in mid December, and I scooped out a bunch of seeds and planted them to see how that would go. (The husband ate the papaya. It turns out that I don't like them very much -- not the flavor, the texture.) I planted 144 seeds on 14 December, which seemed like overkill even at the time, but I could have done two or three times that many: papayas have a lot of seeds.
Then I put the flat on the back of a light fixture down in the basement, for the bottom heat. The first seedling popped up after just nine days, on 23 December.
Since then, at last count, twenty-two more have sprouted. I'm a little surprised it's not more than that, but I suppose they don't want to seem eager. Or possibly they're disappointed with the light. In any case, more are coming along every time I check, and I already have more of them than I'll know what to do with, once they're transplanted to pots.
I'm not actually sure what to do with them at that point, though. Are they difficult to grow indoors? Anybody who's tried this have some tips?