Description
Cereus jamacaru is an impressive columnar cactus, admired for its tall, upright growth, distinctive ribbed stems and attractive blue-green colouring. Its strong architectural form and prominent spines create a striking appearance, making it a popular choice for cactus collections, sunny patios and Mediterranean gardens.
Native to Brazil, this hardy cactus is particularly well suited to warm, dry climates and can develop into a magnificent branching specimen over time. Its drought tolerance, relatively fast growth and spectacular night-blooming flowers make it an excellent choice for both beginners and experienced cactus enthusiasts.
Plant Details
Botanical Name: Cereus jamacaru
Common Name: Mandacaru Cactus • Queen of the Night Cactus
Plant Type: Cactus
Pot Size: 6.5 cm
Growth Rate: Moderate to Fast
Growth Habit: Upright, columnar, branching with age
Mature Size: Approximately 3–6 metres tall in ideal outdoor conditions, occasionally larger; remains smaller when container grown
Care Guide
☀️ Light:
Thrives in full sun or very bright light. In Malta, gradually acclimatise young plants to direct sunlight to prevent scorching during the hottest summer months.
💧 Watering:
Water thoroughly during the growing season, allowing the compost to dry out completely between waterings. Reduce watering significantly during winter when growth slows. Established outdoor plants are highly drought tolerant.
🌱 Soil:
Use a free-draining cactus and succulent compost with added mineral grit, pumice or coarse sand. Excellent drainage is essential to prevent root rot.
🌡 Temperature:
Best grown between 15–35°C. Tolerates Malta’s summer heat well once established. Protect young or container-grown plants from frost and prolonged temperatures below 5°C.
🌸 Flowering
Mature plants may produce spectacular, large white flowers with delicate petals and pale green outer segments. These fragrant flowers typically open during the evening or night and may remain open into the following morning.
Flowering usually occurs during the warmer months and may be followed by attractive reddish-purple fruits containing edible white flesh and small black seeds.
Why You’ll Love It
✔ Impressive upright, columnar growth
✔ Beautiful blue-green stems with distinctive ribs
✔ Produces spectacular night-blooming white flowers
✔ Drought tolerant and well suited to Mediterranean climates
✔ Develops an attractive branching form with age
✔ Excellent architectural feature for gardens and cactus collections
Care Level: ⭐⭐ Easy
A hardy, relatively fast-growing cactus that thrives with plenty of sunlight, excellent drainage and occasional watering. Particularly suitable for Malta’s warm climate, making it an excellent choice for beginners and experienced growers alike.
Pet Safety: 🐾 Use Caution Around Pets
Cereus jamacaru is not generally regarded as toxic to cats or dogs, although reliable species-specific toxicity information is limited. However, its sharp spines can cause injury if touched or chewed. Keep out of reach of curious pets and young children.
Good to Know
Cereus jamacaru is commonly known as Mandacaru in its native Brazil, where it is an important and recognisable cactus of the semi-arid Caatinga region.
Unlike many smaller ornamental cacti, this species can eventually develop into a substantial tree-like specimen with multiple upright branches, making it an impressive feature in suitable outdoor spaces.
Its large, fragrant flowers are adapted to attract nocturnal pollinators, including moths and bats. Once pollinated, they may develop into colourful fruits that are eaten by birds and other wildlife.
Although young plants are compact and suitable for small pots, Cereus jamacaru can grow considerably larger with age and will eventually benefit from a spacious container or a well-drained position in the garden.
Pictures shown may vary from actual product due to the live nature of the items. Some items may be out of stock for various reasons, we will issue a refund or offer alternatives should that be the case.
The Price is per one individual plant.
