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Annona senegalensis

From Wikifruit.com
Wild custard apple (Annona senegalensis)
Scientific name Annona senegalensis[1]
Common names wild custard apple; African custard apple
Genus Annona
Family Annonaceae
Order Magnoliales
Fruit type Aggregate fruit
Growth form Deciduous, multi-stemmed shrub or small tree
Native range Tropical Africa, from Senegal to Kenya and south to Zimbabwe[2]
Climate and site Semi-arid to humid tropics; seasonal woodland, grassland, riverbank, and fallow sites
Mature height Usually 2 to 6 m; up to about 11 m in favorable conditions
Soil Adaptable; sandy loam and pH 5.5 to 7 are described as favorable
Water Seasonal moisture; tolerates semi-arid conditions once established
Sun Light shade in the botanical cultivation account; acclimated plants can be tested in brighter light
Propagation Fresh seed; scarification; natural root suckers
Pollination Beetles are listed as pollinators; hand pollination may improve fruit set or shape
Fruit Yellow to orange aggregate fruit with soft white pulp, about 5 cm across
Harvest Ripe yellow to orange fruit; cracking is common

Annona senegalensis (wild custard apple or African custard apple) is a deciduous African member of the custard-apple family, Annonaceae. The accepted species is usually a multi-stemmed shrub rather than a large orchard tree.[1]

Description[edit | edit source]

Plants are commonly 2 to 6 m tall, with several stems arising near the base. In favorable conditions, especially in eastern Africa, they can become tree-like and reach about 11 m. The foliage is deciduous. The fruit is an aggregate that turns yellow to orange as it ripens and is approximately 5 cm in diameter. Ripe fruit contains soft white pulp.[3][4]

The native range extends from Senegal across tropical Africa to Kenya and south to Zimbabwe. The plant occurs in dry open woodland, bush, and grassland, as well as along riverbanks, on fallow land, and in swamp forests. It is associated with semi-arid to subhumid regions, but also grows in humid tropical conditions, from near sea level to about 1,500 m and occasionally higher in eastern Africa.[2][3][4]

Cultivation[edit | edit source]

Wild custard apple is adapted to a pronounced seasonal rhythm rather than to continuously wet conditions. A warm site with seasonal moisture and good root aeration suits the species better than a cold or permanently waterlogged position. Mean annual temperatures of about 17 to 30 °C and annual rainfall of roughly 700 to 2,500 mm are given as a broad cultivation range.[4]

Soil and water[edit | edit source]

The plant grows on several soil types. Sandy loam over coral rock is described as a favorable setting, with pH 5.5 to 7 preferred and approximately pH 5 to 7.5 tolerated. Use a freely draining soil with organic matter and water during active growth. Once established, the plant can handle seasonal dryness; prolonged drought during flowering or fruit development is likely to reduce performance. Do not keep container or garden roots stagnant after heavy rain.[4]

Sun and humidity[edit | edit source]

Light shade is the documented preference in the botanical cultivation account. Give young plants protection while they establish, then acclimate them gradually to brighter exposure if growth is strong and the root zone remains evenly supplied with water. Warm humid air is compatible with the species, but an open position with airflow is preferable to dense, continuously wet foliage.[4]

Seasonal changes[edit | edit source]

The deciduous habit fits the species' woodland and savanna range. In a climate with a distinct dry season, leaf loss and slower growth can be expected as the soil dries; maintain only enough irrigation to prevent damaging root desiccation, then increase water when warm-season growth resumes. In frost-prone climates, protect young plants from freezing weather.[3][4]

Propagation[edit | edit source]

Fresh seed is the main documented propagation method. Scarification improves germination in nursery-grown plants. Seeds are described as orthodox but vulnerable to insect damage and loss of viability; sow clean seed promptly when possible. Air-dry storage at about 5 °C can preserve viability for more than two years under those storage conditions, but ordinary warm storage should not be assumed to do so. Root suckers can also arise naturally, and established plants coppice readily.[4]

Flowering, fruiting, and harvest[edit | edit source]

The flowers are hermaphroditic, and beetles are listed as pollinators. In Annona, pollen release and stigma receptivity may not coincide; hand pollination can improve fruit set and fruit shape where natural set is poor.[4]

The fruit ripens yellow to orange and is about 5 cm across. Fruit cracking is common, so inspect developing fruit after irregular watering or heavy rain and harvest ripe fruit promptly. The species is often gathered from the wild, and fruit is sometimes sold in local markets rather than produced in standardized commercial orchards.[3][4]

Fruit and uses[edit | edit source]

The ripe white pulp is eaten fresh. Its aroma has been compared with pineapple and its flavor with apricot. Leaves are also used as vegetables, and unopened flower buds have been used in soups or as flavoring. These ethnobotanical uses do not by themselves establish clinical efficacy or the safety of every plant part.[5][4]

References[edit | edit source]