Haworthia radula is only known from the area around Hankey in the Eastern Cape Province.
This species is very closely related to the similar Haworthia attenuata, but differs in that it has many small white tubercles on the leaves whereas Haworthia attenuata has fewer and larger tubercles.
Haworthia radula is an easy plant in cultivation and requires no special care except for good drainage of the soil.
The plants readily proliferate from the base and can form large clumps.
Synonym: Haworthia attenuata var. radula (Sensu M.B. Bayer)
Haworthia radula in habitat.
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