Are you passionate about exotic fruits and wondering how to grow and care for Annona squamosa, commonly known as custard apple, ates, saramuyo, or kidney? This species, a close relative of the custard apple, is not only appreciated for its sweet taste and its nutritional properties, but also for the beauty of its shape and its ornamental value in tropical and subtropical gardens. If you want to enjoy its fresh fruit and properly care for this fruit tree, here you'll learn everything you need: from soil preparation and planting to details about its irrigation needs, pest prevention, harvesting, and culinary uses.
Botanical description of Annona squamosa
La annona squamosa It stands out as a small fruit tree within the extensive Annonaceae family. It does not usually exceed 6 to 8 meters high, making it easy to manage in home gardens. Its trunk has a gray to black bark that peels off easily in long strips, a characteristic that in some regions is used for medicinal purposes such as traditional astringent. The leaves They are simple, alternate and oblong, up to 17 cm long and 5 cm wide, soft to the touch and deep green in color, with an arrangement that alternates its growth to the right and left.
During flowering, Annona squamosa produces bunches of flowers small in size, usually composed of 3 or 4 flowers, each of 1,5 to 3 cm wide, with six petals that vary in color from yellow to green, and a purple center. After pollination, the fruits develop, undoubtedly the tree's greatest attraction.
El fruit of Annona squamosa It is rounded or oval, very similar to the custard apple, but covered with notable green scales that give it a very characteristic appearance. Each fruit weighs between 100 and 230 gramsAs it ripens, its skin softens and may acquire reddish or yellowish tones, depending on the variety and growing conditions. pulp It is white, extremely sweet and creamy, with multiple smooth, shiny brown seeds, which are toxic and should never be eaten.
Habitat, origin and climate adaptation
Annona squamosa is native to tropical and subtropical zones of America, where it grows both wild and cultivated. Today it is widely distributed in Asia (India, Philippines, Pakistan), the Caribbean, Central America, South America and warm regions of Africa and Oceania. It adapts very well to the hot and humid lowlands, tolerating hard, even stony soils, and being resistant to certain salinities.
To develop optimally, Annona squamosa prefers stable temperatures between 22 and 32ºC y high ambient humidity. Is very sensitive to cold and does not tolerate frost or temperatures below 10°C; in cold environments its fruit production is very limited. Unlike other fruit trees, the custard apple tolerates short periods of drought, but requires frequent watering to bear fruit well. direct sun is preferable, although in extremely hot climates it may appreciate some partial shade during the most intense hours.
Differences between Annona squamosa and custard apple
La annona squamosa It is often confused with the custard apple (annona cherimola) due to the similarity of their fruits, but there are important differences What should be known:
- Pulp: The custard apple has a creamier pulp and even sweeter than the custard apple, giving a unique taste experience.
- Cascara: The skin of the custard apple maintains its dark green color when ripe, while the skin of the custard apple can turn reddish, yellow, or light greenish.
- Climate: The custard apple tolerates cold temperatures better and can be grown in more temperate areas, unlike the custard apple, which only thrives in warm climates.
- Fruit shape: The custard apple fruit is smaller and rounder, with equally noticeable scales, while the cherimoya is usually larger and has smoother skin.
Furthermore, the custard apple ripens at different times and its pulp is less fibrous, making it even more appreciated in desserts and fresh preparations.
Cultivation and multiplication of Annona squamosa
Growing Annona squamosa is ideal for those who have space in warm climates and want to enjoy exotic fruits in their garden or orchard. There are different methods of cultivation. propagation and cultivation techniques that can ensure optimal development and a good harvest.
Sowing season and preparation
El best time to plant custard apple It is at the end of winter or beginning of spring, taking advantage of mild temperatures and avoiding the risk of frost. It is mainly used seed extracted from ripe fruits, although the use of woody cuttings, shield grafts or root layering is also possible (especially on Annona reticulata to promote growth).
To improve the germination rate, it is recommended to pre-soak the seeds for 24 hours in warm water (some experts suggest up to 4 days or by gentle scarification of the hard cover). It is important to sow in a soil rich in organic matter, well-drained and slightly looseThe seeds should be planted shallowly, covering them with a thin layer of moist soil. It's preferable to use fresh seeds from fruit harvested less than a week ago.
La germination It can take between 30 and 50 days, depending on temperature and humidity. Seedlings usually begin to bear fruit after 3 to 4 years, although grafted or cutting-propagated plants may do so earlier.
Essential care during growth
Annona squamosa requires some basic care, but key to its healthy development and abundant fruiting:
- Constant temperature: Keep between 22 and 32°C. Avoid exposure to temperatures below 10°C.
- Irrigation: Provide regular watering, avoiding waterlogging. During flowering and fruiting, it is essential to keep the substrate moist, without causing saturation.
- Humidity: It requires humid environments. In arid regions, it can be planted at close spacing (3 x 3 m) to conserve moisture between the canopies.
- Fertilization: It's recommended to add manure or a balanced fertilizer before and during the growing season. This promotes fruit set and overall tree health.
- Pruning: Perform light pruning to remove dry or weak branches, facilitate aeration, and prevent fungal diseases.
- Solar exposition: Preferably full sun, avoiding areas exposed to strong winds.
The tree is tolerant to some types of salinity and can grow in hard or rocky soils, as long as the following are avoided: puddles prolonged, which are lethal to their roots.
Prevention of pests and diseases
In general, Annona squamosa is resistant to most pests and diseases, but some problems may arise, especially in commercial plantations:
- Custard apple seed borer (Bephratelloides spp.): Attacks developing seeds. It is recommended wrap the fruits with polyethylene bags during the vulnerable phase of the fruit to prevent pests.
- Philaphedra scale (Philaphedra tuberculosa): Insect that affects leaves, young stems, and fruit. Check the undersides of leaves for spots and treat with insecticidal soaps or horticultural oils if present.
- Mealybugs: They can affect young shoots and cause indirect damage.
- Anthracnose (Colletotrichum sp.): A fungal disease that can cause blight on flowers and fruit. Maintain good ventilation and remove plant debris to prevent its development.
Regular monitoring and application of ecological methods They allow you to keep the tree healthy without resorting to harsh chemicals.
Harvesting, conservation and seed production
After sowing, Annona squamosa requires 3 to 4 years to start productionA mature tree (at least 5 years old) can yield up to 50 fruits per seasonFrom flowering to ripening, it takes between 90 and 100 days.
To know when to collect the fruits, observe the following: signs of maturation:
- The shell turns softer and cream-colored separation lines appear, contrasting with the green of the exterior.
- Color change of the skin: it goes from dark green to lighter, yellowish or even reddish.
- The fruit may begin to open slightly itself.
Ripe fruits should be harvested inmediatamente, as they soften and decompose quickly (lasting 2-3 days after harvest). Overripeness causes the fruit to fall and split open on the ground.
In commercial plantations, the harvest is carried out in stages over a period of approximate period of 10 weeks, as the fruits reach maturity.
Seeds collected from ripe fruit can be used for new plantations, prioritizing those from the best and healthiest fruits to ensure genetic quality.
Toxicity, traditional uses and nutritional value
La annona squamosa It stands out as a table fruit and for culinary preparations, but knowing its uses and precautions It's fundamental:
- Fresh consumption: The pulp is enjoyed directly, without seeds.
- Preparations: It's used in juices, ice cream, sorbets, smoothies, and desserts. In India, it's traditional to mix the strained pulp with milk to make refreshing drinks.
- Toxicity: The seeds contain anonaine, a toxic alkaloid. They should not be crushed or consumed, although they have been used in India as fish poison and to eliminate lice (through a paste applied externally, never by ingestion).
- Medicinal properties: The bark and leaves are believed to have astringent qualities and have been used in traditional medicine for various remedies.
- Nutritional value: Fruit is rich in simple sugars, carbohydrates, calcium and potassium, and has a moderate level of vitamin C. It is a source of energy and micronutrients, ideal as a complement to fresh and healthy diets.
If you're going to eat the fresh pulp, remember to remove and discard the seeds. They should never be eaten or chewed.
La annona squamosa It's one of the most prized tropical fruits, both for its extraordinary flavor and texture, as well as for its versatility in the kitchen and its ease of cultivation in warm climates. With proper management, attention to humidity, and pest control, you can enjoy its sweet fruits for years in your garden or home orchard.
