Tavaresia is a genus of succulent plants that includes at least two species (Tavaresia barklyi and Tavaresia angolensis) native to southern Africa. Short, erect, 6- to 14-angled stems bear rows of tubercles with three fine white spines, giving the plants a cactoid appearance. Technically, these spines are modified leaf-spines, with two side stipules unique to this genus. Stems take on a dramatic dark coloration in full sun, contrasting with the spines. The large funnel-shaped flowers make these plants attractive to collectors. Swellings near the tips of the coronal lobes are also unique to this genus.
Growing Conditions
Light: Tavaresias prefer light shade rather than full sun, although stems may not color up in shade.
Water: Water sparingly (preferably with rainwater) and fertilize occasionally during the growing season. In the wintertime, they hardly require any.
Temperature: A minimum winter temperature of 41°F (5°C) is acceptable, as long as the soil stays dry.
Soil: These plants grow well in light, gritty soil that drains well.

General Care
Tavaresias are mainly grown by plant collectors, succulent lovers, and enthusiasts who enjoy growing unorthodox-looking plants. They come from summer-rainfall areas, are intolerant of excess water, humidity, and low winter temperatures, and are easily destroyed by mold. Flower buds drop off easily with the slightest touch or in response to unfavorable conditions.
Propagation
Plants are usually propagated by cuttings, which, because they are very fleshy, should be allowed to dry for a week before being put singly into a pot. Grafting Tavaresia on Stapelias is often used and can be recommended.
Pest and Problems
Keep their roots free of mealybugs, as fungal infections often occur because insects damage the stems. A layer of grit on the compost surface prevents moisture from accumulating around the base of the stems and minimizes the chance of a fungal attack on the roots.
Links
- Back to genus Tavaresia
- Succupedia: Browse succulents by Scientific Name, Common Name, Genus, Family, USDA Hardiness Zone, Origin, or cacti by Genus