Pleiospilos

Pleiospilos is a genus of succulent plants in the family Aizoaceae, commonly known as split rocks or living rocks. These plants are native to the arid regions of South Africa. They are characterized by their highly reduced, fleshy leaves that are fused together, resembling small, rounded stones. This mimicry provides excellent camouflage against predators in their natural habitat.

The genus Pleiospilos typically comprises only a few species, with Pleiospilos nelii being the most well-known and widely cultivated. The leaves are usually grey-green or brownish and are often marked with translucent dots or lines. The plant grows as a solitary unit or forms small clumps of these fused leaf structures.

Flowering occurs in the autumn or winter. Pleiospilos produce large, daisy-like flowers that are typically yellow or orange. The flowers are usually solitary and emerge from the center of the plant. After pollination, a capsule develops, which splits open when dry to release its seeds.

Cultivation of Pleiospilos requires well-draining soil, typically a gritty cactus or succulent mix. They thrive in bright sunlight and require minimal watering, especially during their dormant periods in summer. Overwatering is a common cause of rot. These plants are relatively slow-growing and are prized for their unique appearance and resilience in arid conditions.