Elaeagnus triflora
| Elaeagnus triflora | |
|---|---|
| Scientific name | Elaeagnus triflora |
| Genus | Elaeagnus |
| Family | Elaeagnaceae |
| Order | Rosales |
| Fruit | Juicy edible fruit, about 20–25 mm long when fully ripe |
| Growth form | Evergreen scrambling shrub; older short shoots may be thorny |
| Climate and hardiness | Tropical to subtropical; some frost tolerance is reported |
| Mature height | Often scrambling; up to about 10 m |
| Soil | Well-drained soil; tolerates poor or dry soils |
| Water | Moist forest associations, with good root drainage |
| Sun | Forest to scrub habitat; warm, humid conditions |
| Germination | Fresh seed; germination may be very slow and variable |
| Harvest | Fully ripe fruit, eaten raw or cooked |
Elaeagnus triflora is treated as an accepted species name by GBIF, with an exact match and high confidence.[1] Kew's Plants of the World Online also presents the name as accepted and records a native range extending across parts of South and Southeast Asia, New Guinea, northern Australia, and nearby Pacific islands.[2]
Description[edit | edit source]
This is an evergreen scrambling shrub that can use nearby vegetation for support. Older short shoots may be thorny, and the examined description gives a possible height of about 10 m rather than a fixed mature size.[3] The plant is associated with primary rain forest, swamp forest, and secondary scrub from lowland sites to about 1,800 m.[3]
The limits between E. triflora, E. latifolia, and E. conferta are treated as a species-complex question in the horticultural account used here.[3] Keep the scientific identity attached to any collected plant when comparing fruit or cultivation records.
Cultivation[edit | edit source]
The recorded range covers tropical and subtropical conditions, from sea level to elevations above 1,500 m. The cultivation description records some frost tolerance but says plants may die below about −4 °C; this is a qualified field value, not a universal hardiness limit.[3] Warm sites with protection from damaging freezes are the sensible starting point for a new planting.
Soil and water[edit | edit source]
The habitat includes wet forest as well as secondary scrub, while cultivation guidance favors well-drained soil and notes tolerance of poor or dry soils.[3] A practical interpretation is to maintain moisture during establishment without leaving the root zone stagnant; good drainage matters even where the surrounding climate is humid.
Sun and humidity[edit | edit source]
The forest-to-scrub habitat range supports warm, humid air with some flexibility in exposure. As a habitat-based inference, begin with bright filtered light and good airflow, increasing exposure only where the plant maintains vigorous growth; the habitat record does not justify treating full sun as mandatory for every site.[3]
Seasonal changes[edit | edit source]
In tropical climates, keep growth actively supplied with moisture while preserving drainage. In cooler or drier periods, protect young plants from frost and avoid allowing cold, wet soil to persist. The reported temperature warning is approximate and site-dependent, so local protection and plant response are more useful than treating −4 °C as a guaranteed survival threshold.[3]
Propagation[edit | edit source]
Fresh seed should be sown promptly in a cold frame. Germination may occur within weeks or may take as long as 18 months, and stored seed is described as slower in many cases.[3] A four-week warm period followed by 12 weeks of cold stratification is mentioned, but the same account cautions that this schedule may not suit E. triflora; it should therefore be treated as a tentative starting point rather than a dependable recipe.[3]
Vegetative propagation is possible but slow. The described options are half-ripe 7–10 cm heel cuttings, or 10–12 cm current-season mature heel cuttings kept in a frame; rooting may be difficult and take up to 12 months. Layering is likewise given a possible 12-month period.[3] These timings are qualified account values, not guaranteed schedules or success rates.
Flowering, fruiting, and harvest[edit | edit source]
A fixed flowering calendar or bearing age is not appropriate across the broad tropical-to-subtropical range. Plan harvest by fruit maturity rather than by a universal month: the fruit is described as ready when fully ripe, and local temperature, moisture, and plant history will affect the timing.[3]
Fruit and uses[edit | edit source]
Fully ripe fruits are described as juicy and sweet to tart-sweet, about 20–25 mm long, with one large seed.[3] They may be eaten raw or cooked, and the strongly coloured fruit can be made into jelly.[3]