H.violacea is a popular and generally hardy garden plant which is widely grown. Given the wide range of the species, however, forms from drier areas may not be vigorous in tropical areas, and vice versa. Where possible, it is best to select forms from similar climatic zones to the area where they are to be cultivated. Propagation is easy from seed following pre-treatment to break the physical dormancy provided by the impervious seed coat. The seed retains viability for many years.
Cuttings strike well using firm, current season's growth.
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