Bergeranthus addoensis thrives in gardens that experience hot summers and sporadic rainfall with mild winters. It can be planted in a waterwise rocky garden in full sun and is well suited to be grown as a container plant.

Bergeranthus addoensis can be easily propagated through division and seeds. Division is recommended as true to type forms of the plants are instantly guaranteed. As plants mature and clumps develop, separate the offsets ensuring roots remain attached. Plant in individual containers in a well-drained sandy mixture, preferably 2 parts river sand and 1 part potting soil mix. Water sparingly and keep the soil slightly moist to avoid root rot. Place containers in a sunny position. Divide the plants in late winter, just before the active growing season begins. To transplant mature and overgrown plants into the garden, carefully squeeze the container or pot to loosen the edges, shake off the roots to remove compacted soil, plant at the same depth as their previous container. Water sparingly to avoid excessive moisture. Remove dead leaves to encourage new growth.

Bergeranthus addoensis is prone to powdery mildew in humid areas. Treat with systemic fungicide.

Sow Bergeranthus addoensis seeds in autumn (April to May) or spring (September-October) on a mix of 2 parts fine river sand and 1 part fine potting soil. Spread the seeds on top of the soil in seed trays and cover the seeds with a thin layer of the sandy mix. Place the trays in a warm area away from direct sunlight. Gently water with a fine nozzle spray every second day, keep the medium moist, not wet. Germination takes place within 3 weeks; however, seedlings are slow growing.