This perennial is semi-evergreen so it can lose some of its leaves in winter. In colder regions or more exposed gardens, it may lose them all, but then fresh new growth appears again in spring.
 
Position: full sun
Soil: poor to moderately-fertile, well-drained, neutral to alkaline soil
Rate of growth: average to fast-growing
Flowering period: February to July
Hardiness: borderline hardy (may need winter protection)

This long-flowering, bushy, vigorous wallflower produces long spires of deep mauve flowers from late winter to summer (and usually into autumn), above narrow, grey-green leaves. It is a short-lived plant, but it makes a vivid display for many months in a sunny border. Try it as part of a colour-themed scheme, or contrast it with vivid yellows. It also looks good in a rock garden or raised bed.
Supplied in a 2 litre pot. Eventual height .6m x 0.4m