Custard apple (annona cherimola), also known as custard apple when referring to its tree, is a tropical fruit that has won over palates for its unique, creamy flavor. Its cultivation is possible in subtropical climates and has spread from its origin in the Andes of South America to the Mediterranean and other warmer regions of the world. If you want to learn more How to grow custard apple in your garden or orchardThis guide offers you detailed and expanded information, integrating best practices and up-to-date advice to help you achieve successful growing from start to finish.
What is custard apple and what are its characteristics?
El custard apple tree It is a small evergreen tree or shrub that can reach heights of between 7 and 8 meters. Its crown is dense and rounded, with branches that tend to grow irregularly, giving it a lush, attractive appearance in any garden. Its leaves are simple, oval or elliptical, with a smooth texture and a characteristic tomentose underside, that is, covered with a fine layer of small hairs.
The custard apple flowers They are fragrant, small, and have yellowish tones with hints of purple. It's important to note that, although the flowers have limited ornamental value, they are essential for subsequent fruit production.
El custard apple fruit This is what stands out most about this tree. Rounded or oval in shape, it can reach dimensions of up to 20 centimeters and a weight of between 150 and 500 grams. Its skin is thin and green, with reliefs reminiscent of scales or fingerprints, and is not edible. The interior is white, fleshy, with a creamy texture and sweet flavor, which combines notes of pineapple, banana, and strawberry, making this fruit a true tropical delight. Inside are numerous dark, shiny seeds that, while inedible and somewhat toxic, can be used to start new crops.
In its natural habitat, the cherimoya thrives at altitudes between 1.500 and 2.200 meters above sea level, with its original distribution between southern Ecuador and northern Peru. However, thanks to adaptation and the development of new agricultural techniques, it can now be cultivated in various regions with suitable climates.
Nutritional properties and benefits of custard apple
La Custard apple is a fruit highly appreciated not only for its flavor, but also for its nutritional properties.It is a healthy option for those seeking a balanced diet, providing numerous health benefits:
- High in vitamin C, essential for strengthening the immune system and acting as an antioxidant.
- Rich in vitamin B6, which promotes brain function and the production of neurotransmitters.
- Contains essential minerals such as potassium, iron and magnesium, contributing to proper muscle and nerve function, the production of red blood cells and the regulation of blood pressure.
- Su high fiber content helps regulate the digestive system and can help reduce cholesterol.
- Low calorie compared to other tropical fruits, being suitable for low-calorie diets.
- It contains Antioxidants such as catechin and epicatechin, which fight free radicals and delay cellular aging.
- The leaves and seeds of the custard apple have been used in the production of cosmetic products, and the seeds (inedible) in products against dandruff and lice.
- Some studies suggest digestive, antitumor properties and a potential effect against anemia.
What climate and soil does the custard apple need?
The custard apple is a demanding plant in terms of climate and soil, and its success will depend largely on adapting the environment to its ecological needs:
- Subtropical or tropical climate: It requires mild, frost-free temperatures with mild winters. Optimal temperatures range between 17 and 20°C. Although it can tolerate slight drops or increases, it is sensitive to both extreme cold and intense heat.
- Medium-high rainfall: It requires at least 800 liters per square meter per year. When rainfall drops below 600 liters per year, fruit production and quality can be affected.
- Luz: Sunny location, preferably with 6-8 hours of direct sun per day.
- Deep, well-drained soils: It prefers fertile soils with a good organic matter content, slightly acidic (pH between 6 and 7,5), and that do not retain excess water. Root asphyxiation due to waterlogging is one of the main causes of crop failure.
As for the wind, it is advisable to place the tree in a sheltered location, since its branches are fragile and susceptible to breaking in storms or strong winds.
How to obtain and germinate custard apple seeds
The first step Growing custard apple from scratch It's the process of obtaining and germinating seeds. The process is simple, but there are some key details to ensure success:
- Select a ripe, fresh custard apple. Open the fruit and remove the darkened seeds inside, making sure to remove all traces of pulp to prevent the growth of fungus.
- Wash the seeds carefully with warm water and dry them with a clean cloth.
- Soak the seeds for 24 hoursThis helps soften the outer layer and increases the chances of germination.
- Optionally, carefully file or cut off a small part of the thinner end of each seed to facilitate root emergence. Do this only with a few seeds if you're inexperienced, so as not to damage them.
- Place the seeds in a container with wet kitchen paperCover them lightly, keep them in a warm place, and make sure the paper is always moist, but never soaked. Good ventilation will prevent rot.
- After 15-21 days, you should see the first white radicle emerging from the seed. At this point, the seed is ready to be planted in the ground.
Sowing and transplanting custard apple seedlings
Once the seeds have germinated, prepare pots or seedbeds with light, well-drained soil. Dig a hole about 2 cm deep and insert the germinated seed, root-side down. Cover with soil and water moderately.
Place the pot in a warm, bright location, avoiding direct sunlight for the first few days. Keep the potting soil slightly moist and protect it from cold or drafts.
When the seedlings are about 10-15 centimeters tall and have developed several true leaves, they will be ready to be transplanted to their final location, preferably in late winter or early spring, when the risk of frost has disappeared.
During transplant:
- Choose a permanent location with full sun and protected from the wind.
- Improve the soil with compost or organic fertilizer, ensuring perfect drainage.
- Maintain a minimum distance of 5 to 6 meters between plants, as adult trees can reach large sizes and require space for optimal development.
- Water generously after transplanting, but avoid waterlogging.
Essential care for optimal custard apple cultivation
The success of growing cherimoya depends on paying attention to several factors throughout the tree's life cycle. Here are the Key recommendations and best practices:
- IrrigationCherimoya requires regular watering, especially during dry seasons. Avoid waterlogging, which can cause root rot. Drip irrigation is an excellent option, as it keeps the soil moist without saturating it.
- FertilizationApply organic fertilizers rich in organic matter in spring. You can apply a second application in early summer, preferably with mature compost or well-rotted manure. Avoid excessive nitrogen fertilizers, as they promote leaf development at the expense of flowering and fruiting.
- PruningPerform formative pruning during the first few years to give the tree structure and allow light to enter. After harvesting, remove dry, misaligned, or damaged branches to prevent disease and promote internal ventilation.
- Protection against coldIf there is a risk of frost, protect the base of the tree with organic mulch and cover the crown with mesh or fabric on colder nights.
- Weed control and health: Keep the soil free of weeds, especially near the trunk, to avoid competition for water and nutrients and reduce the incidence of pests.
- mulching: Applying a layer of mulch made of straw, dry leaves, or bark helps retain moisture and protects the roots.
Pollination of custard apple: natural and manual
One of the determining factors in production of custard apple fruits It is pollination. In its native area, pollination is carried out primarily by beetles, but in regions where these insects are not present, manual pollination is used to ensure a good harvest.
The process involves collecting pollen from male flowers (when they are open, usually in the late afternoon) and carefully transferring it to the female flowers using a fine paintbrush or cotton swab. This task is usually done early in the morning, when the flowers are receptive.
Hand pollination has become a common practice in commercial growing areas, as it significantly increases fruit yield and size.
Pests and diseases that affect custard apple
Although it is a robust fruit tree, the custard apple can be affected by various pests and diseases. adequate prevention and regular observation are the best tools to keep the crop healthy:
- Most common pests:
- Fruit fly: It causes direct damage to fruit, leading to premature rot. Color traps and regular monitoring can be used.
- Aphids and mealybugs: They feed on sap and can transmit diseases. The use of organic insecticides or potassium soap is usually sufficient to control their populations.
- Most common diseases:
- Anthracnose: A fungus that causes brown spots on leaves and fruit. Proper irrigation control, pruning, and removal of affected parts are essential. In severe cases, fungicides approved for organic farming can be used.
- Root rot: Caused by waterlogged soil or overwatering.
Harvest and post-harvest of custard apple
La custard apple is a climacteric fruit, that is, it continues to ripen after being picked. Harvesting should begin when the fruit has reached its characteristic size and color, but is still firm (the skin should yield slightly to pressure, but not become marked).
The main harvest season is between late summer and early winter, although modern farming techniques can extend production for several more months.
The fruit must be handled very carefully to avoid damage, as the skin is very delicate and can break easily, affecting the fruit's quality and marketability. It is preferable to cut the stem with pruning shears to prevent accidental detachment.
Once harvested, cherimoyas should be stored in a cool, well-ventilated area. They can be stored for a few days at room temperature or refrigerated, but long-term storage is not recommended, as their shelf life is limited.
Main varieties and commercial aspects of custard apple
The Fino de Jete variety It is one of the most cultivated and appreciated varieties, especially on the Tropical Coast of Granada and Malaga, leading global production areas thanks to their privileged climate. Other commercial varieties include Campas, Bonita, Bronceada, Negrito, and White, each with unique characteristics in terms of flavor, size, shape, and disease resistance.
- Commercial cultivation in Spain is primarily concentrated in the domestic market, although a growing percentage is exported to European countries such as France, Germany, and the United Kingdom.
- The custard apple requires careful handling during post-harvest due to its delicate skin and rapid ripening process.
Demand is increasing, but the cherimoya remains a relatively unknown fruit to many consumers outside its primary production area.
Challenges and future of custard apple cultivation
Despite the excellent qualities of the cherimoya and its dominant position in certain agricultural areas, its cultivation faces significant challenges:
- Hand pollination: It requires skilled labor, raising production costs.
- Delicate skin: Its fragility complicates handling and marketing, especially for export.
- Need for innovation: Agricultural research is advancing in the development of new, more resilient varieties and methods to extend the shelf life of fruit during transport.
- Competition with other crops: The rise of fruits such as mango and avocado has led some farmers to replace custard apple plantations with these more profitable varieties.
However, the trend towards greater appreciation of exotic fruits and the growth of international consumption predict a promising future for custard apple cultivation, especially with the incorporation of new technologies and sustainable practices.
The custard apple stands out as an exotic and healthy fruit thanks to its nutritional properties and incomparable flavor. Growing it at home can be challenging, but also a rewarding experience, whether you have a small garden or just have space in your backyard. By adapting its cultivation to ideal conditions and paying attention to the details you've learned here, you're sure to enjoy the unique flavor of the cherimoya. freshly picked custard apple directly from your tree.
