Crassula perfoliata
Crassula perfoliata is an evergreen succulent subshrub up to about 1 m tall, from rocky outcrops, cliffs and grassland in eastern South Africa, Eswatini, Mozambique and Zimbabwe. It has grey-green, often sickle-shaped leaves in opposite rows and dense heads of red, pink or whitish flowers in summer. There are four varieties. The best known, var. falcata (the propeller plant), holds the RHS Award of Garden Merit. It wants strong light, very free drainage, a summer-growing water rhythm and a frost-free, dry winter.
Where it grows wild
It grows on rocky outcrops, cliff faces and canyon walls, often on quartzite sandstone, and in rocky grassland on steep slopes. These are open, sunny and fast-draining sites. The var. falcata form occurs from the Groot Winterhoek range into the Eastern Cape.
Only 5 records carry an elevation, spanning 42–1800 m with a median of 91 m. The distribution runs from the coastal Eastern Cape inland to the Mpumalanga and Limpopo escarpments, so many populations are well above sea level.
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Profiles are drafts built from measured range and climate and from published sources; each section carries its own confidence in the app. Photo from Wikimedia Commons, used under its CC BY 3.0 licence, unmodified.