
Appearance
It is a vigorous evergreen climber growing to 6 m or more, sometimes growing as a subshrub. It has typical pea-like flowers which are usually violet but can be white, pink or other colours. The leaves are dark green, "hard" and leathery, with prominent venation.
Habitat
"H. violacea" is a widespread species found in many habitats. It is also widely grown as a garden plant, with many cultivars now available. It is hardy in mild and coastal areas of the UK where temperatures do not fall below −5 °C, but it does require a sheltered, south or west facing situation. Alternatively it may be grown indoors with full daylight, for instance in an unheated conservatory or greenhouse. It has been given the Royal Horticultural Society's Award of Garden Merit."H. violacea" regrows from its roots after fire.
The roots were experimented with by early European settlers as a substitute for sarsaparilla. It can be propagated from seed after pre-treatment, when around 21 °C. The seeds are naturally dispersed by ants.
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