Soursop, known botanically as Annona muricata, is native to the tropical lowlands of the Caribbean, Central America, and northern South America. From that original range, the tree has been transplanted across virtually every tropical region on the planet and is now grown commercially and in home gardens from West Africa to Southeast Asia.1Crop Science. The soursop (Annona muricata): Botany, horticulture, and utilization But the tree’s extreme sensitivity to cold and its narrow climate preferences mean it cannot simply be planted anywhere warm and expected to fruit well.
Origins in the Tropical Americas
Soursop belongs to the Annonaceae, a large family of mostly tropical fruit trees that also includes sugar apple, cherimoya, and custard apple. Among its relatives, soursop is considered the most tropical species, meaning it requires the most consistently warm conditions and tolerates the least cold.2Scientia Horticulturae. Soil temperature, physiology, and growth of containerized Annona species The tree’s wild ancestors are thought to have originated in the lowland forests of the Caribbean basin and the northern parts of South America, particularly in what are now Colombia, Venezuela, and parts of Brazil. From there, Indigenous peoples spread it through the Caribbean islands and into Central America long before European contact.
When Spanish and Portuguese colonizers arrived in the Americas, they encountered soursop already widely cultivated across the region. The fruit’s distinctive flavor and the tree’s usefulness in traditional medicine made it appealing for transplantation to colonial territories in Africa and Asia. By the 17th and 18th centuries, soursop had been introduced to parts of West Africa, the Indian subcontinent, and island Southeast Asia, where it naturalized quickly in the humid tropical lowlands that mirrored its native habitat.
What Climate Soursop Needs
Soursop trees demand year-round warmth. They grow best at average temperatures between roughly 25 and 28 °C, and their biggest vulnerability is cold. Branches on young soursop trees have been killed when air temperatures dipped below freezing, making it far less cold-tolerant than related Annona species like sugar apple or atemoya.2Scientia Horticulturae. Soil temperature, physiology, and growth of containerized Annona species A single hard frost can devastate a mature tree, and even sustained cool temperatures in the low teens Celsius can slow growth and prevent fruiting. This cold intolerance is the main reason soursop’s range stays tightly anchored to the tropics and doesn’t creep into subtropical zones the way some of its cousins do.
Altitude matters as well. While soursop trees have been documented growing at elevations from sea level up to about 2,000 meters above sea level, the ideal altitude range for strong growth sits much lower, between roughly 240 and 300 meters.3Tropical Plants. Baseline edaphic requirements of soursop (Annona muricata L.) At higher elevations, the cooler nighttime temperatures slow development and reduce fruit set. In practice, most commercial soursop orchards are found in warm lowland valleys and coastal plains where temperatures rarely drop below 15 °C even at night.
Rainfall preferences lean toward 1,500 to 2,000 millimeters per year, fairly evenly distributed. The tree can handle a brief dry season, and some growers find a short dry spell actually helps synchronize flowering. But extended drought stresses the roots, and waterlogged soils are equally damaging. Well-drained, slightly acidic soils work best. The tree is not picky about soil type and will grow in sandy, loamy, or clay soils as long as drainage is adequate.
Where Soursop Grows Commercially Today
The tree is now cultivated commercially and in dooryard gardens across most of the world’s tropical belt.1Crop Science. The soursop (Annona muricata): Botany, horticulture, and utilization In the Americas, the major producing countries include Mexico, Brazil, Colombia, Venezuela, and several Caribbean nations. Soursop is an economically important fruit in these regions, marketed both as fresh fruit and as frozen pulp for juices, ice cream, and other processed products.4PubMed Central. Soursop (Annona muricata) Properties and Perspectives for Integral Valorization In Mexico, soursop is significant enough to be both a domestic market staple and an export crop.5PubMed. Biology and behavior of the seed borer wasp Bephratelloides cubensis Ashmead (Hymenoptera: Eurytomidae)
Outside the Americas, soursop is widely grown across West and Central Africa, particularly in Nigeria, Ghana, and Cameroon. In Asia, the Philippines, Indonesia, Vietnam, and parts of southern India and Sri Lanka are all active growing regions. The tree also does well in tropical Australia, particularly in northern Queensland. These introductions generally happened centuries ago, giving the tree plenty of time to become culturally embedded in local food traditions. In many of these places, soursop has its own local names and culinary traditions that make it feel like a native fruit even though it arrived from across an ocean.
Mexico’s Soursop Belt
Mexico offers a useful case study for understanding soursop geography because it sits right at the northern edge of the tree’s comfortable range, and researchers there have studied its distribution in detail. The main growing regions include the Pacific coast states of Nayarit, Colima, and Jalisco, along with the Gulf coast state of Veracruz. These areas share the warm, humid lowland conditions soursop favors. Climate modeling has confirmed that the Mexican Pacific coast and Veracruz maintain excellent conditions for soursop cultivation, and projections under global climate-change scenarios suggest these zones could expand, potentially opening new suitable areas in the Balsas basin, the Yucatán Peninsula, the Chiapas highlands, and even fringes of the southern Chihuahuan desert, though the last of those comes with some limitations.6Revista Chapingo Serie Horticultura. Distribution, eco-climatic characterization and modelling of suitable soursop cultivation zones in Mexico
One challenge Mexico’s soursop growers face is pest pressure. The seed borer wasp (Bephratelloides cubensis) is the most damaging pest in the country’s soursop orchards. In some growing areas, about 60 percent of fruits show damage from this wasp, and individual fruits can have anywhere from 5 to 50 infested seeds, cutting yields by roughly a quarter. In the state of Nayarit, the problem has been particularly severe, with 100 percent of surveyed fruits showing damage in some studies.5PubMed. Biology and behavior of the seed borer wasp Bephratelloides cubensis Ashmead (Hymenoptera: Eurytomidae) This pest is native to the same region as soursop, so the wasp and the tree have a long evolutionary relationship. The wasp lays eggs inside developing fruit, and the larvae feed on seeds, often making the fruit unmarketable even when the flesh itself is undamaged.
Soursop in Africa and Southeast Asia
When soursop reached West Africa and Southeast Asia, it found conditions remarkably similar to its native Caribbean lowlands: consistent warmth, abundant rainfall, and well-drained tropical soils. In many West African countries, the fruit is now so common in markets and along roadsides that it blends into the landscape. Nigeria is one of the more significant growing areas on the continent, with production scattered across the southern part of the country. However, soursop in Nigeria and other African growing regions faces increasing problems with fungal fruit rots, which reduce both the quality and market availability of the fruit.7International Journal of Innovative Research and Development. Post-harvest Survey of Fungal Diseases Associated with Soursop (Annona muricata L.) Fruits The humid tropical conditions that favor soursop growth also favor fungal pathogens, and post-harvest handling practices in many regions can exacerbate spoilage.
In Southeast Asia, soursop goes by various local names and is eaten fresh, juiced, or made into candy and preserves. The Philippines and Indonesia are among the largest Asian producers. In these countries, soursop trees frequently grow in mixed home gardens alongside coconut, banana, and jackfruit. This kind of polyculture system is common across the tropics, where smallholders plant soursop as one of several income-generating trees rather than devoting entire orchards to it. Commercial monoculture plantations exist in some countries, but much of the world’s soursop is still produced by small farmers tending a handful of trees.
Genetic Diversity Across Growing Regions
A question that often follows “where does soursop grow” is whether all soursop is essentially the same tree regardless of where it’s planted, or whether centuries of geographic separation have created meaningful genetic differences between populations. Researchers looking at soursop accessions from Mexico and Colombia found a striking difference. Soursop from Mexico’s Pacific-Occident region showed relatively low genetic diversity, with polymorphic loci ranging from about 25 to 59 percent, while accessions from Colombia’s Valle del Cauca region had much higher diversity, with values from roughly 75 to 86 percent.8Phyton-International Journal of Experimental Botany. Genetic Diversity of Soursop (Annona muricata L.) Accessions from Mexico and Colombia
This pattern makes biological sense. Colombia sits within what is likely part of soursop’s center of origin, where the species has been present longest and had the most time to accumulate genetic variation. Mexican populations, farther from that center, may derive from a narrower set of introductions. For growers and breeders, this matters because low genetic diversity in a crop can mean vulnerability to diseases or pests. If most trees in a region are genetically similar, a single well-adapted pathogen could sweep through the entire population. Breeding programs that want to develop disease-resistant or higher-yielding soursop varieties often look to high-diversity populations in Colombia and northern South America for useful traits to introduce into more genetically uniform growing regions.
Why Fresh Soursop Is Hard to Find in Temperate Countries
If you live in a temperate climate, you have probably noticed that fresh soursop is rare or nonexistent in grocery stores, even as other tropical fruits like mangoes and pineapples are available year-round. The reason comes down to the fruit’s extremely short shelf life and its fragility. Soursop begins to soften almost immediately after harvest, and it bruises easily during transport. Damaged and non-standard fruits from falling and crushing can account for 30 to 50 percent of production.4PubMed Central. Soursop (Annona muricata) Properties and Perspectives for Integral Valorization That loss rate makes long-distance shipping of fresh fruit economically challenging. Most soursop that reaches consumers outside the tropics arrives as frozen pulp, concentrate, or shelf-stable juice rather than as a whole fruit. When you do see fresh soursop in a specialty grocery store or ethnic market in a northern city, it has typically been air-freighted and carries a steep price tag.
This post-harvest fragility also affects markets within producing countries. Soursop grown for local consumption is usually sold within a day or two of harvest, and even in tropical cities close to growing regions, quality degrades quickly if the supply chain is slow. The seeds, which make up 3 to 8.5 percent of the fruit’s weight, and the peels, accounting for 7 to 20 percent, are typically discarded, adding to food waste that researchers are now exploring ways to use productively.4PubMed Central. Soursop (Annona muricata) Properties and Perspectives for Integral Valorization
Growing Soursop Outside the Tropics
People in subtropical and even warm-temperate areas regularly try to grow soursop, with mixed results. In the continental United States, the most realistic outdoor growing region is southern Florida, particularly the Miami-Dade area and the Florida Keys, where winter lows rarely reach freezing. Even there, an unusual cold snap can damage or kill a soursop tree. South Florida growers sometimes plant soursop on the south side of a building for wind protection and radiant heat, or they wrap young trunks during cold warnings. The trees can fruit in these marginal conditions, but yields are generally lower and less reliable than in fully tropical climates.
In Hawaii, soursop does well at low elevations on the wetter sides of the islands, where conditions come close to the tree’s native Caribbean environment. Parts of coastal southern California are occasionally warm enough to keep a soursop alive, but the dry summers, cool marine air, and occasional winter dips into the low single digits Celsius make productive fruiting unlikely without significant protection. Most California soursop attempts end up as interesting-looking but non-fruiting ornamental trees, or they die in a cold year.
Container growing is another option for enthusiasts in cooler climates. A soursop tree grown in a large pot can be kept outdoors during warm months and moved into a greenhouse or heated garage when temperatures drop. The tree will stay smaller than it would in the ground, and pollination often needs to be done by hand since the beetle pollinators that service soursop in the wild are absent. Container-grown trees sometimes fruit after three or four years, though harvests tend to be modest. The effort involved is significant enough that container soursop is really a hobbyist pursuit rather than a practical way to produce fruit.
How Climate Change May Shift Soursop’s Growing Range
Climate projections for soursop are still limited, but the work done in Mexico gives a glimpse of what rising temperatures could mean. The modeling study that examined Mexico’s soursop-growing zones found that under climate-change scenarios, the areas with excellent growing conditions on the Pacific coast and in Veracruz hold steady or even expand. More interesting is the emergence of newly suitable zones in areas that are currently too cool or too arid for soursop, including parts of the Yucatán Peninsula and the Chiapas highlands.6Revista Chapingo Serie Horticultura. Distribution, eco-climatic characterization and modelling of suitable soursop cultivation zones in Mexico The model even suggested possible expansion into the fringes of the southern Chihuahuan desert, though water availability would be a limiting factor there regardless of temperature.
If these patterns hold in other countries, we might see soursop cultivation become viable slightly farther from the equator in the coming decades, potentially benefiting growers in marginal zones who can take advantage of warming winters. The flip side is that some currently productive lowland areas could become too hot or too prone to extreme weather events. Fungal disease pressure could also intensify as humidity patterns shift.7International Journal of Innovative Research and Development. Post-harvest Survey of Fungal Diseases Associated with Soursop (Annona muricata L.) Fruits The tree’s low genetic diversity in some growing regions is a concern here, since a genetically uniform crop has fewer built-in options for adapting to rapid environmental change. Whether breeders can draw on the richer gene pools found in places like Colombia to develop hardier varieties may end up being one of the more consequential questions for soursop’s future geography.8Phyton-International Journal of Experimental Botany. Genetic Diversity of Soursop (Annona muricata L.) Accessions from Mexico and Colombia
Pollination and Why It Limits Where Soursop Thrives
Even when the climate and soil are right, soursop faces a bottleneck that many tropical fruit trees share: pollination. Soursop flowers are pollinated primarily by small beetles, not by bees or wind. The flowers open in the late afternoon and are receptive overnight, which matches the activity patterns of their beetle pollinators. In the tree’s native range, these beetles are abundant and the system works well. But when soursop is grown far from the Americas, or in gardens surrounded by urban development rather than forest, the right pollinators may be absent or scarce. The result is poor fruit set, even on a healthy tree covered in flowers.
Commercial growers in regions with weak natural pollination often resort to hand pollination, collecting pollen from flowers in the late afternoon and transferring it with a brush the following morning. The process is labor-intensive but can dramatically improve yields. In backyard settings, low fruit production on an otherwise healthy soursop tree is usually a pollination problem rather than a nutrient or water issue. This is one reason soursop trees in tropical countries near their native range often outproduce genetically identical trees planted in, say, Southeast Asia or coastal Australia. The beetles that co-evolved with soursop flowers are most diverse and abundant in the Neotropics, and no perfect substitute pollinator has established itself in the tree’s introduced range. If you are growing soursop outside the Caribbean or Central America and getting lots of flowers but very few fruit, hand pollination is almost certainly the fix.