Soursop Or Graviola

Sowing: Soursop is propagated from seed, cuttings, or shield-budding; fresh seed germinates quickly when kept moist on a damp paper towel or in shaded, moist containers, and seedlings come true to their parent.

Siting and watering: The tree needs a frost-free site in full sun to partial shade with a humid, tropical-like atmosphere, since it is very frost tender and cannot tolerate freezing temperatures. It grows best in rich, sandy, loamy, well-draining soil at pH 5.5–6.5, though average or light alkaline soils are tolerated; the soil should be kept evenly moist, as prolonged dryness causes leaf drop, but established plants tolerate drought and only need moderate watering.

Feeding and pruning: Regular applications of a balanced fertilizer support growth and fruiting, and the tree benefits from pruning in late winter or early spring to remove dead wood and improve airflow through the canopy. Soursop is self-compatible and does not require hand pollination, and a single tree can set fruit multiple times a year.

Soursop fruit is picked once it is fully grown and slightly soft to the touch, generally a few days after it begins to soften, and its skin changes from dark green to a lighter yellow-green as it ripens. Fruit should be cut from the tree with a sharp knife or pruning shears rather than pulled, handled gently to avoid bruising, and picking is best done in the cooler hours of morning or late afternoon; once harvested it should be kept in a cool, dry place and used within a few days.

Culinary: The ripe pulp is eaten raw or cooked and is widely used to prepare juices, syrups, candies, ice creams, shakes, and sorbets, while the young stems are cooked as a vegetable and the leaves are steeped into a beverage known as corossol tea.

Medicinal: In traditional medicine among communities in Africa, South America, and the Caribbean, the fruit has been used against arthritis and fever, the seeds and fruit against parasitic infections, the roots against parasitism, root bark as an antidote for poisoning, and pulverized immature fruit for dysentery; other folk uses include treating headache, hypertension, heart complaints, shock, anxiety, and gallbladder trouble, as a sedative, and to aid childbirth, and the leaves have historically been used in folk treatments for cancer. These are historical and cultural uses rather than confirmed medical treatments.

Other uses: The toxic alkaloids in the seeds have been exploited as an irritant poison and insecticide against lice, bedbugs, worms, pea aphids, and black carpet beetles, and the fruit has served as fish bait; the wood has been used as fuel and for ox yokes, living trees are used for intercropping with larger trees, and the bark has been used in tanning.

Soursop is native to the American tropics, with its range spanning southern Mexico, Central America, and northwestern South America into Bolivia, and it became especially common through the Caribbean and West Indies. The species has a long record of deliberate human dispersal for cultivation, spreading well beyond its native range through repeated intentional introductions into tropical regions worldwide.