Learn everything about the mandacaru: its origin, cultivation methods, culinary and medicinal uses, and how to care for the plant at home or in the garden.
Submitted at Jun 18, 2025, 7:00 AM
But those who think the mandacaru belongs only in the countryside are mistaken: increasingly, it has gained traction in landscaping, rustic interiors, and urban gardens, winning admirers throughout the country. Its sculptural appearance makes it ideal for those seeking a plant with a striking presence, and it is also an excellent option for projects with low water availability.
The mandacaru is a native cactus species of the Caatinga, a biome that is exclusively Brazilian and characterized by a semi-arid climate. Its popular name derives from the Tupi "mandacarú", meaning "grouped thorns" — a direct reference to the morphology of the plant. Its scientific name is Cereus jamacaru, and it belongs to the Cactaceae family.
The mandacaru can exceed five meters in height, developing vertical and branched stems that store water and help with survival during long periods of drought.
One of the most curious aspects of the mandacaru is its ability to bloom at night. Its flowers are large, white, and extremely fragrant, opening only for a few hours in the dark to attract nocturnal pollinators like bats and some species of moths.
The blooming of the mandacaru is considered a harbinger of the arrival of rain in the hinterland, which is why it appears in popular songs, cords, and legends as a mystical plant associated with hope.
Another interesting detail is that, despite appearing rustic and aggressive due to its thorns, the mandacaru is considered a plant of spiritual protection in many cultures, being cultivated near houses as a guardian against negative energies.
The mandacaru is a plant that is easy to adapt, ideal for both those with gardening experience and beginners. Here are the main steps to cultivate and multiply this resistant and symbolic plant:
Choosing the location: The mandacaru should be planted in a location with good sunlight. It needs at least four hours of direct sunlight per day. Open-air gardens or well-lit balconies are ideal. Indoors, the pot should be near windows that receive plenty of natural light.
Soil type: The soil must be well drained because water accumulation in the roots can cause rot. The best mixture for planting includes coarse sand, garden soil, and a bit of organic matter. Specific substrates for cacti also work very well.
Pots and containers: If opting to cultivate in a pot, choose a container with holes at the bottom to ensure drainage. Prefer clay pots or ceramics that help with the evaporation of excess moisture and keep the plant healthier.
Proper watering: One of the great advantages of the mandacaru is its tolerance to drought. Watering should be moderate: every 15 days in the summer and even more spaced in winter. Only water when the soil is completely dry to the touch.
Propagation by cuttings: The most practical method for making cuttings is through cutting. Cut a segment of the stem (from a mature and healthy plant), let the base heal for a few days in the shade, and then plant it in new dry and airy soil. This technique has a high success rate.
Propagation by seeds: Although less common, the mandacaru can also be cultivated from seeds. However, the process is slow and requires more patience. Seeds should be planted in moist substrate and kept under indirect light until they germinate.
Container maintenance: To maintain the plant with a more controlled size, it can be grown in large pots. Over time, it will be necessary to replant in larger containers so that the roots continue to develop without restriction.
Although the mandacaru is synonymous with resilience, some care is essential to ensure its health and longevity. The first point is controlled watering. Excess water is a common mistake in domestic cactus cultivation, and it can lead to base rot and the emergence of fungi.
The general recommendation is to water only when the soil is completely dry. Another important care is related to luminosity: the mandacaru needs direct sunlight, so it is not suitable for indoor environments with little natural light.
If you want to keep it indoors, it's necessary to position it near well-lit windows or on balconies.
Pruning is not a requirement of the plant but can be done to control growth or remove damaged parts. Always use thick gloves and appropriate tools, as the thorns are rigid and can cause injuries.
Using substrates specifically for cacti and succulents is also recommended since these materials have good drainage and prevent moisture accumulation.
Finally, it is always good to watch for signs of pests, like mealybugs and mites, especially in more humid environments or poorly ventilated areas. If they appear, the application of natural solutions, like neem oil (a natural product extracted from neem tree seeds), can be sufficient for control.
In addition to its ornamental and cultural value, the mandacaru also has medicinal and food utilities. In popular northeastern medicine, it is used to treat a range of conditions, especially respiratory.
The tea made from the inner pulp of the stem is known for its expectorant action, being indicated to relieve cough and flu-like symptoms. It is also believed that mandacaru has diuretic properties and is useful in treating kidney problems, although it is always recommended to consult a health professional before using any plant for medicinal purposes.
In culinary aspects, the fruit of the mandacaru, known as "mandacaru fruit" or "sertanejo pitaya", is edible and highly appreciated in the Northeast region. It has a sweet pulp and can be consumed raw or used in juices, jams, preserves, and desserts.
Fruit harvesting should be done when it is ripe, with the skin fully colored, signaling the ideal point for consumption. Additionally, some traditional communities use young parts of the plant in culinary preparations, after a careful process of removing thorns and cooking, making the mandacaru a true example of a multifunctional plant — that nourishes, heals, and beautifies spaces.
