Synonyms:

Faucaria tuberculosa
Mesembryanthemum tuberculatum

Habitat:

Faucaria felina subsp. tuberculosa is native to South Africa, specifically thriving in the arid and semi-arid regions of the Eastern Cape. It grows in rocky areas, often in quartz fields, where it is well-adapted to the harsh, dry environment. This succulent’s habitat is characterized by limited rainfall and intense sunlight, conditions under which it has evolved to survive efficiently.

Description:

Faucaria felina subsp. tuberculosa, commonly known as Tiger’s Jaw, is a low-growing, clump-forming succulent. This plant is notable for its fleshy, triangular leaves that grow in opposite pairs, resembling an open mouth with teeth – hence the name. Each leaf is typically about 3-5 cm long and 2-3 cm wide. The leaves are green to bluish-green in color and covered with small, white tubercles (warts), giving them a rough, textured appearance. These tubercles are not only decorative but also functional, helping to reduce water loss and aiding in light reflection, a crucial adaptation for survival in its native arid environment. The margins of the leaves are lined with soft, tooth-like structures, which are actually harmless but add to the plant’s distinctive appearance. One of the most appealing aspects of Faucaria felina subsp. tuberculosa is its bright yellow flowers. These daisy-like blooms appear mainly in the fall and are about 4 cm in diameter. The flowers open in the afternoon and close at night, and this process repeats over several days. They require ample sunlight to bloom and are a striking contrast against the plant’s textured foliage.

Cultivation:

Cultivating Faucaria felina subsp. tuberculosa is relatively easy, making it a popular choice for succulent enthusiasts. This plant prefers a sunny location, which encourages flowering and maintains the vibrant color of the leaves. It can tolerate light shade but may become leggy and less vibrant in color. A well-draining soil mix is essential for healthy growth. A typical cactus or succulent potting mix, which usually contains a combination of soil, coarse sand, and perlite or pumice, is ideal. Overwatering is a primary concern, so ensure the soil is completely dry between waterings. During the winter months, watering should be minimal, as the plant enters a dormant period. Faucaria felina subsp. tuberculosa is not frost-tolerant and needs protection from freezing temperatures. In colder climates, it is best grown in containers that can be moved indoors during winter. When grown indoors, it should be placed in a spot where it can receive several hours of direct sunlight, such as a south-facing window. Fertilization is not a frequent requirement. A diluted, balanced fertilizer can be applied once in the spring and once in the summer. Repotting is necessary only when the plant outgrows its container, typically every two to three years.

Propagation:

Propagation of Faucaria felina subsp. tuberculosa is commonly achieved through seeds or leaf cuttings. When propagating by leaf cuttings, select a healthy, mature leaf and allow the cut end to callous over for a few days before planting in well-draining soil. Keep the soil slightly moist and provide bright, indirect light until new growth appears, indicating successful rooting. For seed propagation, sow the seeds in a well-draining soil mix and keep them moist and warm. Germination usually occurs within a few weeks. Seedlings should be gradually acclimatized to more sunlight as they grow.

Curiosity:

A fascinating aspect of Faucaria felina subsp. tuberculosa is its “trap” mechanism. The soft teeth on the leaf edges can close slightly when an object (like an insect) touches them. While it’s not a true carnivorous mechanism, this feature might help protect the plant’s delicate flowers and foliage from herbivorous insects.

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