Answer: This fruit (Cucumis metuliferus also called Kiwano or African Horned Melon) has only recently become available in specialty produce lines and is being grown commercially in New Zealand and California. (You may enjoy this fan club site I came across http://www.kiwanonet.demon.co.uk/kiwano.html which includes some lore such as it has been around for 3000 years; another fun fact I found is that it is known for its aphrodisiac qualities.) Since it is a cucurbit I would suggest growing it as you would any other melon -- rich, warm soil, full sun, and ample water. I suspect however that it needs a very long growing season to ripen on the vine. Enjoy your melon!
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