The genus Crassula is one of the most diverse succulent genera, varying from tiny moss-like annual plants to 2m tall succulent trees like Crassula ovata. Belonging to the Crassulaceae family, there are more than 300 Crassula species of which approx. 150 are found in southern Africa, where they are widespread but concentrated in the semi-arid winter-rainfall areas. The centre of distribution of this genus is in southern Africa, but they extend beyond Africa into Europe, America, Australia, New Zealand and the southern islands. The name Crassula is the diminutive of the Latin crassus which means thick or fat, referring to the fleshy nature of the genus as a whole. This popular genus offers an extensive array of sizes, growing forms and textures making them perfect for landscaping, rockeries, windowsill plants or to be grown in containers. They can also be grown indoors as house plants. Those that make excellent house plants are the glossy leaf varieties. Crassulas, given a rich, well-drained medium will grow fast and luxuriantly.

Crassula mesembryanthemoides or Dew Bush; directly translated from the local Afrikaans common name, Doubossie grows to 40cm tall. Afrikaans is one of the 11 official languages of South Africa. It is a much-branched shrublet with hairy leaves which reflects sunlight, giving rise to its common name. The leaves are organized in rosettes which makes it look like a plant from the Aizoaceae family or Mesembryanthemum. This gave it the species name ‘mesembryanthemoides’ which means looking like a Mesembryanthemum. From autumn to winter it bears cream coloured flowers. The seeds of this indigenous South African crassula are best sown in spring. It prefers a shady area in the garden but also makes an interesting container plant.