Averrhoa bilimbi

Averrhoa bilimbi
Bilimbi fruit (Averrhoa bilimbi); the Commons file description identifies the species and fruit.
Scientific name	Averrhoa bilimbi
Common names	Bilimbi; cucumber tree; tree sorrel
Genus	Averrhoa
Family	Oxalidaceae
Order	Oxalidales
Fruit type	Berry
Growth form	Evergreen shrub or small tree, often cauliflorous
Native range	Maluku and Sulawesi in the accepted native-range record; widely introduced in the tropics
Mature size	Often 2–3 m in cultivation; sometimes up to about 15 m
Years to fruit	N/A — no dependable species-specific first-fruiting value located

Averrhoa bilimbi L.

Description

Averrhoa bilimbi is bilimbi, a sour-fruited relative of carambola in the Oxalidaceae. Its fruit is commonly borne on older branches and the trunk, giving the tree a cauliflorous appearance. Bilimbi is distinct from Averrhoa carambola even though the two species share a genus and some regional naming. ^[1][2][3]

Distribution and habitat

The accepted native-range record places bilimbi in Maluku and Sulawesi, with introductions throughout tropical regions. The species account describes lowland and riverine conditions in humid climates. That ecology supports dependable moisture and warmth but does not establish tolerance of waterlogged roots. ^[1][3][4]

Cultivation

Soil and water

Use fertile, organic, well-drained soil that stays evenly moist. Raised planting or a sharply draining container medium is safer than planting into stagnant wet ground. A species-specific pH target has not been established. ^[3]

Sun and humidity

Full sun is reported for productive growth, with protection from drying exposure while young. Maintain airflow in a dense canopy and keep water available during hot weather. Humid tropical air suits the documented ecology, but no numeric humidity requirement was found. ^[3]

Seasonal changes

The available sources do not establish one flowering or harvest calendar for all regions. Bilimbi can flower and fruit on older wood in warm climates, while drought, cool weather, or root stress can reduce growth and fruit set. Adjust irrigation to local rainfall and protect from frost. ^[3][4]

Propagation

Seed, marcotting, and budding are reported methods. No single germination time or comparative success rate is established; fresh seed and vegetative methods remain context-dependent rather than guaranteed protocols. ^[3]

Flowering, fruiting, and harvest

The long, ribbed fruits are harvested green to yellow-green for their sharp acidity and are used in regional cooking, pickling, relishes, and souring preparations. A universal maturity index, storage life, and first-fruiting age were not verified. ^[3][4]

Fruit and uses

The documented use is the strongly sour fruit in prepared foods and condiments. Medicinal or concentrated-preparation claims are omitted, and carambola-specific toxicity findings are not transferred to bilimbi without bilimbi-specific evidence. ^[3][4]

Photos

Averrhoa bilimbi at Wilson Botanical Garden, Costa Rica; the Commons file description identifies the species.

Averrhoa bilimbi; the Commons file categories identify fruit and flowers.

References

• ↑ [1] Plants of the World Online: Averrhoa bilimbi L.

• ↑ [2] GBIF species match: Averrhoa bilimbi.

• ↑ [3] Useful Tropical Plants: Averrhoa bilimbi.

• ↑ [4] FAO: Under-utilized Tropical Fruits of Thailand.

Image credits

• Averrhoa bilimbi fruit by Sugeesh.jpg — Bilimbi fruit (Averrhoa bilimbi); the Commons file description identifies the species and fruit. Creator: Sugeesh; license: CC BY-SA 3.0. Commons file page.
• Averrhoa bilimbi 15zz.jpg — Averrhoa bilimbi at Wilson Botanical Garden, Costa Rica; the Commons file description identifies the species. Creator: Photo by David J. Stang; license: CC BY-SA 4.0. Commons file page.
• Averrhoa bilimbi Linn.jpg — Averrhoa bilimbi; the Commons file categories identify fruit and flowers. Creator: Silviculture South; license: CC BY-SA 4.0. Commons file page.