The nocturnal cactus that produces the vibrant, scaly fruit known as dragon fruit

Countries & Cities · Published 29 September 2026 Swipe more like this →

In short: Known as pitahaya or pitaya, this succulent cactus is native to Mexico and Central America. Its flowers bloom only once, under the cover of night, relying on bats and moths for pollination. Once a staple of tropical regions, it is now cultivated globally for its distinct, colorful, and seed-flecked flesh.

Dragon fruit belongs to the cactus genus Selenicereus, with species like S. undatus, S. costaricensis, and S. megalanthus defining the primary varieties found in markets. These plants are remarkably hardy, capable of climbing up to 10 metres by intertwining with trees for support. While they thrive in dry tropical climates and can endure temperatures up to 40 °C, they are sensitive to prolonged freezing and excessive moisture, which can lead to rot from bacteria like Xanthomonas campestris or various fungal infections.

The plant's reproductive cycle is as fascinating as its appearance. The tubular, bisexual flowers open only at night, releasing an aroma to attract nocturnal pollinators. While some varieties are self-fertile, cross-pollination generally improves fruit quality. Once pollinated, the fruit takes between 4 and 8 weeks to ripen. Interestingly, the vibrant red and purple hues found in some cultivars are caused by betacyanins, the same pigments responsible for the color of beets and Swiss chard.

Cultivation is a long-term investment. Commercial plantings can reach densities of over 1,300 plants per hectare, but it may take up to 60 months for a crop to reach full production. When mature, these plants can yield between 20 and 30 metric tons per hectare. Despite its exotic reputation, the fruit itself is nutritionally modest, consisting of about 84% water and 15% carbohydrates, offering roughly 57 kilocalories per 100 grams. Today, the fruit is grown extensively across Vietnam, China, Australia, and South America, having successfully transitioned from its native range to become a global commercial commodity.

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