You will need a female and a male plant to produce fruit, although sometime both sexes are present on the same plant. Carica likes lots of water and fertilizer in warm weather. Papaya can be grown in a heated greenhouse up north. Plant them in large tubs or containers, keep warm in the winter, and move them outside during the summer months to give them some fresh air. The success of Carica depends on several factors, such as, papaya needs full sun or very little shade, excellent drainage and again warmth.
Failure is usually from root rot, especially when planted in cold wet soil.
By planting on the south side and close to a building, where plants can benefit from reflected heat, can really make a difference in the way it grows and produces fruit. This may prove to be a much hardier papaya, although one must have a cutting or a plant to start with. Male and female flowers are needed to produce fruit. Somewhat tropical in its requirements. Strelitzia nicolai Images of the Giant Bird of Paradise in a progressive series of photographs from start to finish of the flowering process.