The Ruby Longan (Dimocarpus longan 'Ruby') is a rare and visually striking tropical fruit tree, known for its bright red-skinned fruit and sweet, juicy flesh. It's a special cultivar of the traditional longan, developed for its enhanced color, flavor, and ornamental value.

🌿 Plant Description
Scientific Name: Dimocarpus longan ‘Ruby’

Family: Sapindaceae (same as lychee and rambutan)

Type: Evergreen tropical fruit tree

🌳 Tree Characteristics
Height: Typically 10–12 meters in the ground; shorter in containers.

Crown: Rounded and moderately dense canopy.

Leaves:

Dark green, glossy, and compound with several leaflets.

Young leaves often emerge with a reddish tint.

Bark: Brown to gray and relatively smooth.

🌼 Flowers
Type: Small, creamy-yellow to white.

Arrangement: Borne in terminal panicles (clusters).

Pollination: Mostly insect-pollinated, especially by bees.

🍇 Fruit Features
Skin: Distinctive ruby-red when ripe—unlike the usual brown longan.

Size: About the size of a large grape or small lychee.

Flesh: Translucent white, juicy, and fragrant.

Flavor: Sweet and musky, similar to lychee but milder.

Seed: Large, dark brown to black, glossy.

🌱 Growing Conditions
Climate: Thrives in warm, humid, tropical to subtropical climates.

Soil: Prefers fertile, well-drained, slightly acidic to neutral soil.

Light: Full sun is best for fruit production.

Water: Moderate watering; avoid waterlogging.

Cold Tolerance: Sensitive to frost; best grown in zones 10–11 or protected microclimates.

🕒 Fruiting
Maturity Time: Typically begins fruiting 2–3 years after planting if grafted.

Harvest Season: Late summer to early autumn in tropical regions.

🩺 Health & Nutritional Benefits
High in vitamin C, antioxidants, and minerals like iron and potassium.

Known in traditional medicine for its calming and restorative effects.