Quote:
Originally Posted by Bananaman88
... Is 'Solo' the only papaya cultivar that is self-fruitful?
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There are many papayas that are self-fruitful, although most of them are not Carica papaya, and the ones that are in C. papaya are typically not hardy below zone 11.
For a run-down on Papaya species, see
Carica - Wikipedia, the free encyclopedia . Most of these interbreed, so the potential for more plants like "Solo" is very high.