Ferocactus latispinus (Devil’s Tongue Cactus)

Ferocactus latispinus, commonly known as the Devil’s Tongue Barrel Cactus or Devil’s Tongue Cactus, is a stunning Ferocactus species easily recognized for its fierce, wide spines and globular shape. Collectors and desert gardeners often admire this cactus for its unique spines, vibrant flowers, and hardiness in arid environments.

The Devil’s Tongue Cactus is a member of the Cactaceae family, which also includes the popular Chrismas cactus, prickly pear (opuntia), pincushion cactus (mammillaria), and the iconic saguaro cactus and San Pedro cactus.

Description

Ferocactus latispinus is a globular or barrel-shaped cactus that stands out due to its distinctive broad, flattened spines. The plant’s body is ribbed, each lined with prominent spines. Its spines are particularly striking, ranging from red to yellow and curving slightly, which gives the cactus its devilish nickname. Over time, this cactus may elongate slightly, but it generally maintains a compact, barrel-like form.

The cactus produces beautiful funnel-shaped flowers near the top of the plant, adding even more appeal to its appearance.

Native Habitat

The Devil’s Tongue Cactus is native to Mexico’s central and southern regions, where it thrives in arid and semi-arid environments. It is commonly found in rocky outcrops, desert plains, and dry shrublands. The cactus is well adapted to extreme weather conditions, including high temperatures and low rainfall, which are characteristic of its native habitat.

Plant Type and Habit

The Devil’s Tongue Cactus is a perennial succulent that remains a solitary plant without dividing or producing offsets. It has a slow-growing, globular growth habit, gradually becoming cylindrical with age. Its dense, spiny ribs are characteristic of the Ferocactus genus, known for its large and sometimes intimidating appearance.

Plant Size

At maturity, this barrel cactus typically reaches a height of 4 to 16 inches (10-40 cm) and can spread up to 10-18 inches (25-45 cm) in diameter. In cultivation, it may take several years for the cactus to reach its full size as it grows slowly.

Cactus Flowers

One of its standout features is its flowers. The funnel-shaped flowers bloom at the top of the plant and are usually bright purple, rich-rose, and sometimes yellow. The blooms contrast beautifully with the cactus’s spiny exterior, providing a burst of color. They are about 1.4 inches (4 cm) in diameter and add ornamental value to the cactus.

This flowering cactus typically blooms during the fall and early winter, making it somewhat unique among cacti, which more commonly bloom in the spring or summer. The flowers appear when the temperatures are cooler, which sets it apart from other desert plants that bloom in the warmer months.

Fruits

After flowering, the Devil’s Tongue Cactus produces small, oval-shaped fruits that contain tiny black seeds. These fruits are often eaten by wildlife, particularly birds, who help disperse the seeds in the wild.

Stem and Spines

The stem is barrel-shaped, light green to blue-green, with 21 ribs that run vertically along its body. Each rib is lined with areoles, which produce the cactus’s distinctive spines. The spines are broad, flattened, and curved, typically colored red, pink, or yellow. They can reach up to 2 inches (5 cm) in length, with a central spine that is especially thick and prominent.

Hardiness

Ferocactus latispinus is hardy in USDA zones 9-11, meaning it can tolerate temperatures as low as 25°F (-4°C) for short periods. It is not frost-tolerant, so in regions where the temperatures dip below freezing, it should be kept indoors or in a greenhouse during the colder months.

Award

Recipient of the prestigious Award of Garden Merit of the Royal Horticultural Society.

Wildlife

In its natural habitat, Ferocactus latispinus plays a role in supporting local wildlife. The cactus’s flowers attract pollinators, such as bees and butterflies, while its fruits provide food for birds and small mammals. The seeds are dispersed by these animals, helping the species propagate in the wild.

Toxicity

The Devil’s Tongue Cactus is not toxic to humans or animals. However, its sharp spines can cause injury if handled improperly, so care should be taken when moving or repotting the cactus. 

Deer and Rabbits

Due to its formidable spines, this barrel cactus is highly resistant to deer and rabbits, which typically avoid feeding on it. The spines deter herbivores, ensuring the cactus remains undisturbed in its desert habitat.

Drought Tolerance

Like most desert cacti, this barrel cactus is highly drought-tolerant. Its ability to store water in its thick stem allows it to survive extended periods without rainfall. Once established, it requires very little water, making it an ideal plant for water-efficient gardens or xeriscaping projects.

Invasiveness

Ferocactus latispinus is not considered an invasive species. It grows slowly and does not spread aggressively, making it easy to control in gardens and outdoor settings. Its compact growth habit and slow maturation ensure that it remains manageable over time.

Benefits

The primary benefits of this cactus are its low-maintenance care and ornamental value. It requires minimal water, making it ideal for drought-tolerant landscapes. Its unique appearance, colorful spines and vibrant flowers make it a favorite among cactus enthusiasts.

Devil’s Tongue Cactus Care

Light:

• Requires full sun for at least 6 hours daily.
• Ideal for outdoor placement in a sunny spot or a bright, south-facing window indoors.

Soil:

• Use a well-draining cactus mix.
• Amend with sand or perlite to ensure proper drainage.

Water:

• Water thoroughly, but allow soil to dry out completely between waterings.
• Reduce watering during winter dormancy.

Fertilizer:

• Apply a diluted cactus fertilizer every 4-6 weeks during the growing season (spring and summer).
• Avoid fertilizing in winter.

Pruning:

• Minimal pruning needed. Remove dead or damaged parts carefully to maintain appearance.

Propagation:

• Propagate by seeds, as Ferocactus latispinus rarely produces offsets.
• Sow seeds in well-draining soil and keep them warm and moist until germination.

Pests and Diseases:

• Watch for common pests like mealybugs, spider mites, and scale insects. Use neem oil to treat infestations of mealybugs and spider mites. Use sticky traps or hand-pick scale insects
• Overwatering can cause root rot. Ensure proper drainage to prevent this.