The Spiral Cactus: A Bizarre and Fascinating Plant

The Spiral Cactus, also known as Cereus forbesii ‘Spiralis,’ is a peculiar and unique species that captures attention with its distinctive appearance. When young, it starts with straight ridges, but as it grows to a height of about 10 cm, the ridges begin to spiral, giving the plant its characteristic shape. In the wild, the columns of this cactus form a candelabra-like arrangement.

The stems of the Spiral Cactus can reach heights between 6 and 13 feet, with a diameter of 4 to 5 inches. They are covered in a waxy coating and have ribs that are spaced out in groups of 5 to 9. This plant is known for its showy nature and late blooming. Once pollinated, it quickly produces large, purple fruits that are completely safe to eat. However, handling the plant should be done with caution due to its sharp spines. Spiral Cactus is also referred to as Twisted Cereus, Contorted Cereus, and Cereus peruvianus tortuosus.

In the past, ownership of most gardens and major collections of cacti and succulents was limited to the wealthy, who became patrons of botanists in exchange for new species to enhance their gardens.

Repotting should be done every other year or when the plant has outgrown its current pot. Ensure that the soil is dry and carefully remove the plant from the pot. Knock away old soil and prune any rotted or dead roots. Move it to a new pot filled with fresh soil.

Propagation of Cereus forbesii ‘Spiralis’ is easily done through stem cuttings taken in the spring or from seeds. Take a severed branch and replant it in moist, well-drained soil. Allow the cut end to dry out and harden before replanting to facilitate root development.

If your Cereus has outgrown its container, it may be necessary to repot it. Again, ensure the soil is dry, then remove the pot, knock away old soil, and prune away any rotted roots. Replant it in a new pot and backfill with fresh soil. Be careful not to overwater as this can lead to root rot.

These cacti are easily propagated from cuttings. Simply cut a branch and replant it in moist, well-drained soil. The branch should be left to dry for about a week before potting and then lightly watered.

The origin of the plant dates back to around 1980 when a few branches from the original plant were imported to Europe at a very high price. The original clone was characterized by strong gray stems covered with a dense pruina coating and having short spines (“short-spined clone”). However, over the years, through cultivation and hybridization, various forms and cultivars of the Spiral Cactus have been developed, each with its own unique traits and aesthetic appeal.

The Spiral Cactus is an extraordinary plant that stands out with its twisting stems and distinctive growth pattern. Its unusual form and ability to adapt to various growing conditions make it a captivating addition to any succulent collection or garden. Whether you’re a cactus enthusiast or simply appreciate the beauty of nature’s oddities, the Spiral Cactus is sure to fascinate and delight with its bizarre yet alluring appearance.