West Indian Cherry is a low-branching shrub or small tree originating in tropical America, it natural range extending from Mexico through Central America and the Caribbean to South America, as far south as the state of Rio Grande do Sul, in Brazil.
It may grow into a small tree reaching heights up to 12 m (40 ft), but is more typically a shrub 3 to 5 m (10 to 16 ft) tall with multiple stems that lean away from the centre, forming a wide-spreading, v-shaped plant. The bark is grey or brown, smooth and dotted with wart-like pores known as lenticels.
The leaves are oval or club-shaped, 3 to 8 cm (1.2 to 3 in) long, glossy lime-green and arranged in opposite pairs along the branches. They normally stay on the plant throughout the year, but some leaf-fall occurs in areas with a pronounced dry season.
The flowers are small with five pink petals and come into bloom after it rains, which is usually the rainy season in seasonally wet and dry areas or is on and off throughout the year in areas with no distinct dry season. They are soon followed green cherry-like fruit, becoming bright red to dark red when ripe, with soft juicy pulp surround three angular seed.
The fruit are eaten when fully ripe, mostly fresh out-of-hand but are also commonly made into a refreshing drink. The pulp is juicy with an agreeable sourish to sweet flavour, but sometimes can be insipid, depending on the variety, growing conditions and stage of ripeness. The fruit pulp is easily processed in fresh juice, purees and fruit syrup or cordial.
Extracts of the fruit are used as an antioxidant in skincare products, particularly in formulations against skin redness and inflammation.
West Indian Cherry grows naturally in humid subtropical and tropical climates, generally in frost-free areas with annual lows of 13 to 25 °C, annual highs of 22 to 35 °C, annual rainfall of 800 to 3200 mm and a dry season of 7 months or less. It also grows and fruits well in drier areas with irrigation. However, it may fail to thrive in areas where the average low of the coldest month is below 8 °C (46 °F).
The fruit pulp and juice is among the richest known sources of vitamin C (ascorbic acid). The highest concentration of vitamin C are found in the green fruit, decreasing as the fruit ripens. It is most readily available in its natural, or fresh, form and can easily be destroyed during processing into products such juice and vitamin tablets. The fresh fruit also has good supplies of vitamin A, beta carotene, folate and iron.
New plants can be raised from seed, cuttings or using air-layering (circumposing) techniques.
Performs best on free-draining clay, loam and sand soils of a moderately acid to alkaline nature, generally with a pH of 5.5 to 8.5 and on sites with full to partial sun exposure. It has poor tolerance to slow-draining or waterlogged soils and is susceptible to nematode attack, particularly on sandy soils.
The variety 'Florida sweet' is the most popular and widely cultivated variety, on account of its adaptability to a wide range of subtropical and tropical climates, as well as for its flavoursome fruit, which reportedly is semi-sweet with an apple-like flavour.
It is recorded as naturalised in Puerto Rico and listed as a weed in at least one reference publication, though as a minor weed, and there otherwise does not appear to be any record of it as serious weed or invasive species, despite its widespread introduction and cultivation. It is assessed as a low weed risk species for Hawaii, by the Hawaii Pacific Weed Risk Assessment project (HPWRA).
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Food and Agriculture Organization of the United Nations (FAO) 1986, Food and Fruit-bearing Forest Species, 3 : Examples from Latin America, FAO Forestry Paper no 44/3, Rome
Francis, J. K. and Liogier, H. A. 1991, Naturalized exotic tree species in Puerto Rico, General technical report SO-82, USDA Forest Service, Southern Forest Experiment Station, New Orleans
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Standley, P. C. 1920, Trees and shrubs of Mexico, Government Printing Office (GPO), Washington D.C.
Tindall, H. D. & Rice, L. W. 1990, Fruit and vegetable production in warm climates, International ed., Macmillan, London
Winter, R. 2009, A consumer's dictionary of cosmetic ingredients : complete information about the harmful and desirable ingredients found in cosmetics and cosmeceuticals, 7th ed, Three Rivers Press, New York
Percival, S. & Findley, B. 2007 (Reviewed April 2014), What's in Your Tropical Fruit?, Fact Sheet HN 0708, University of Florida IFAS Extension Service, Gainesville, Florida
Watson, B.J., & Moncur, M. 1985, Guideline criteria for determining survival, commercial and best mean minimum July temperature for various tropical fruit in Australia (Southern Hemisphere), Department of Primary Industries Queensland (DPI QLD), Wet Tropics Regional Publication, Queensland
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