The Bushmen in South-Africa often use this plant in the dry season because of the large amount of water to be found in its tuber. In spring these exotic plants are in full bloom with tiny, inconspicuous greenish-yellow flowers. This Raphionacme burkei plant from South-Africa has a large tuber growing above ground and from its top emerge its stalks and leaves. The exotic-looking tuber is called a ‘caudex’ and has a very smooth surface. The tuber serves as a depository for extra water and nutrients that can be utilised by the plant in dry periods. The tuber can eventually grow to a diameter of about 40 centimetres. It takes quite some time for the plant to reach this size: the Raphionacme burkei plants from Araflora are already 10 to 20 years old. The Raphionacme burkei is classified under the family of the Asciepiadaceae. In the past these plants were taken from their natural surroundings. Nowadays these exotic plants are cultivated in South-Africa and afterwards transported to Europe.

A Raphionacme burkei ‘caudex’ plant can best be cultivated in a warm place half in the shade. Light: Bright, warm, partially shaded location. Avoid direct intense sunlight. Watering: Slightly more water during the growing season, but allow the soil to dry completely between watering. Minimal water in winter. Fertilizer: Use plant food occasionally during the growing season. Pruning: Leaves and stems die back annually; remove dead parts. Plant can be pruned if it becomes too large. Soil: Well-draining cactus or succulent soil, optionally mixed with perlite or pumice. Repotting: Only when necessary; leave the caudex partially above soil for a decorative look. With proper care, Raphionacme burkei develops into a sculptural, long-lived succulent. Its mature tuber stores water and nutrients, making it easy to maintain, even during periods of drought or low feeding.