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Hylocereus undatus (Dragon Fruit)
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Hylocereus undatus

Dragon Fruit

At a Glance

Foliageevergreen
Height120-240 inches (300-600 cm) on support
Width48-120 inches (120-300 cm)
Maturity3 years

Growing Zones

USDA Hardiness Zones

10 - 11
These zones indicate the coldest temperatures this plant can typically survive.
What's my zone? →
Frost Tolerancetender

Overview

Hylocereus undatus is dragon fruit (pitahaya), a climbing cactus reaching 120–240 inches (300–600 cm) on a support structure. Green three-ribbed photosynthetic stems (no true leaves) with aerial roots that cling to supports — the stems are the photosynthetic organs. White nocturnal flowers 10–14 inches (25–35 cm) across open for a single night and close by morning — pollination must occur during this window. Hand-pollination during the night or early morning improves fruit set, as natural pollinators (moths and bats) may be absent in cultivation. Fruit 3–5 inches (7–13 cm) with pink to red scales on the exterior and white flesh with small black seeds (the standard H. undatus type; red-fleshed types exist in other species and hybrids). The flesh is mildly sweet with a texture similar to kiwifruit. Vietnam produces the largest volume of dragon fruit commercially. Self-fertile for the white-fleshed type, though cross-pollination with a different clone improves fruit size and set. Requires a sturdy support — a thick wooden post, concrete pillar, or trellis (the heavy stems need support capable of bearing weight). Frost-tender: stems damaged below 32°F (0°C). Full sun. Well-draining soil. Non-toxic — fruit is edible. Zones 10–11 outdoors. Container culture at 10–15 gallons (40–60 liters) with winter protection in cold zones. Growth rate is fast.

Native Range

Native to Central America and Mexico. Widely cultivated throughout tropical Asia, particularly Vietnam, which is the largest commercial producer.

Suggested Uses

Grown on sturdy posts or trellises in zones 10–11, or in containers of 10–15 gallons (40–60 liters) with winter protection. Full sun. Hand-pollinate nocturnal flowers for fruit. Non-toxic edible fruit.

How to Identify

Identified by green three-ribbed climbing cactus stems (no true leaves), large white nocturnal flowers 10–14 inches (25–35 cm), and pink-scaled fruit with white or red flesh. The three-ribbed stem cross-section and the nocturnal flower habit are the genus identifiers.

Appearance

Size & Dimensions

Height10' - 20'
Width/Spread4' - 10'

Reaches mature size in approximately 3 years

Colors

Flower Colors

Foliage Colors

Fall Foliage Colors

Bloom Information

Bloom Period

~16 weeks
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Large white nocturnal flowers from summer through fall. Each flower opens for a single night. Hand-pollination during the night or early morning improves fruit set. Fruit ripens 30–50 days after pollination.

Detailed Descriptions

Flower Description

White, very large, nocturnal

Foliage Description

Leafless — green three-ribbed photosynthetic stems

Growing Conditions

Sun Requirements

Requires 6-10 hours of direct sunlight daily
• Full Sun: 6+ hours of direct sunlight
• Partial Shade: 3-6 hours of direct sunlight
• Full Shade: Less than 3 hours of direct sunlight

Soil Requirements

pH Range6.0 - 7.0(Neutral)
357912
Soil Types
Drainagewell drained

Water & Climate

Water Needs

moderate

Frost Tolerance

tender

Time to Maturity

1-2 years to fruit

Drought Tolerance

Drought tolerant when established

Care & Maintenance

Care Guide

Full sun. Sturdy support structure required (the stems are heavy). Well-draining soil. Frost-tender below 32°F (0°C). Hand-pollinate nocturnal flowers for fruit set. Self-fertile (white-fleshed type); cross-pollination improves yield. Non-toxic edible fruit. Fast-growing. Zones 10–11.

Pruning

Trim stems to manage size and shape. Remove dead or damaged stem sections. Train main stems vertically on the support, allowing secondary stems to drape or cascade for fruit production.

Pruning Schedule

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spring

Maintenance Level

moderate

Container Growing

✓ Suitable for container growing

Minimum container size: 10 gallons

⚠️ Toxicity Warning

Non-toxic