Caralluma hexagona Lavranos
Caralluma foulcheri-delboscii, Caralluma foulcheri-delboscii var. greenbergiana, Caralluma hexagona var. septentrionalis, Caralluma shadhbana, Caralluma shadhbana var. barhana, Ceropegia hexagona, Desmidorchis shadhbana, Monolluma hexagona, Sulcolluma foulcheri-delboscii, Sulcolluma foulcheri-delboscii var. greenbergiana, Sulcolluma hexagon, Sulcolluma hexagona var. septentrionalis, Sulcolluma shadhbana, Sulcolluma shadhbana var. barhana
This species is native to Saudi Arabia, Yemen and Oman. It grows in shallow soil overlaying rock outcrops and crevices.
Caralluma hexagona is a small, much-branched succulent with fleshy, green to gray-green stems with four wavy and toothed ribs. It grows up to 8 inches (20 cm) tall, forming dense clumps. Stems are upright or ascending, branched, up to 3.2 inches (8 cm) long, and up to 0.8 inches (2 cm) thick. Flowers are erect, star-shaped to slightly bell-shaped, and up to 0.9 inches (2.2 cm) across. They are greenish-white or cream-colored, densely spotted with reddish-brown, and appear on short stalks in clusters of 5 to 20 in late summer and fall.
USDA hardiness zone 10a to 11b: from 30 °F (−1.1 °C) to 50 °F (+10 °C).
How to Grow and Care
Stapeliads are relatively easy to grow. They should be treated as outdoor plants as they will easily rot indoors and cannot flower without exposure to outdoor temperature fluctuations. They should be grown under cover so that watering can be controlled. They require a reasonable amount of sunlight to promote flowering and maintain a well-shaped plant. Very shady positions will produce very poor flowering. Stapeliads come from climates where they survive extremely high temperatures in the summer months, so most growth is in spring and autumn, with flowering in autumn when the weather starts to cool down.
The easiest and best way to propagate Stapeliads is from stem cuttings, which can be taken virtually throughout the year. Using seeds is also a method of propagation.
They all need extra good drainage. Stapeliads are shallow-rooted. A collection of them can be planted nicely in a wide, shallow bowl. When planting, it is a good idea to allow the roots to be buried in soil and then put pure gravel or sand around the base of the plant to prevent rot.
See more at How to Grow and Care for Stapeliads.
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