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Unlike the stereotypical desert cactus, this is a fast-growing, sprawling, and vining species that develops thick, three-sided stems with prominent ridges and small clusters of spines along the edges. With support, it climbs and cascades, making it highly ornamental in both gardens and greenhouses.
One of the most spectacular features of the Dragon Fruit Cactus is its flowers. These are large, funnel-shaped, and creamy white with a delicate fragrance, blooming at night and lasting only until dawn. If pollinated, the flowers give way to oval fruits with vivid pink to red skin and green scales, revealing a white or red pulp speckled with tiny black seeds. The fruit is sweet, refreshing, and highly nutritious.
Indoors, this cactus can be grown as a striking ornamental plant, while in warm greenhouses or outdoors in suitable climates, it can be trained on trellises or supports to produce fruit. Its unusual form, nocturnal flowers, and edible harvest make it a plant of both beauty and utility.
Requires bright, direct light for much of the day. Outdoors, it thrives in full sun; indoors, place near a south-facing window or provide supplemental grow lighting. Insufficient light will result in weak, leggy growth and reduced flowering.
Water deeply when the soil has almost dried out, then allow excess to drain freely. During the active growing season (spring to autumn), this may mean watering every 710 days depending on conditions. In winter, when growth slows, reduce watering to once every 34 weeks. Overwatering or waterlogged soil can cause root rot.
Temperature: Prefers warm conditions between 2030C. It is frost-sensitive and should not be exposed to temperatures below 10C.
Humidity: Moderate humidity is fine, though the plant is tolerant of dry air as long as watering is consistent.
Use a gritty, free-draining cactus and succulent compost. Adding sand or perlite helps improve aeration and drainage. Plant in a container with drainage holes, and if growing for fruit, provide a sturdy support such as a trellis or pole to encourage vertical growth.
Feed every 24 weeks during the growing season with a balanced cactus fertiliser or a high-potassium feed to encourage flowers and fruit. Stop feeding in winter.
Prune to manage size and shape, removing excess side shoots to encourage strong vertical growth. For fruiting, focus on training a few main stems upwards, as flowers and fruits are produced from mature branches.
Flowers typically appear in summer, opening at night and wilting by morning. They are often pollinated by moths or bats in nature, but hand-pollination with a soft brush may be required indoors or in greenhouses.
Fruits develop several weeks after flowering and can be harvested once the skin has turned bright pink or red.
Yellowing stems: Often caused by overwatering or poor drainage.
Lack of flowers/fruit: Usually due to insufficient light, lack of support, or the plant being too young.
Pests: Can be affected by mealybugs or scale insects; wipe stems regularly and inspect for signs of pests.
The Dragon Fruit Cactus has been cultivated for centuries for its unusual fruit, which is rich in antioxidants, vitamin C, and fibre. The plants nocturnal flowers are sometimes called moonflowers due to their brief but enchanting bloom. Its exotic look and practical harvest make it a favourite among collectors, gardeners, and food enthusiasts alike.
Quick Care Summary
Light: Full sun or bright, direct indoor light
Water: Allow soil to dry slightly between waterings
Temperature: 2030C; avoid below 10C
Soil: Free-draining cactus compost
Feed: Every 24 weeks in growing season
Growth: Climbing, requires support for fruiting
