Dorling Kindersley 2003 
An upright evergreen shrub with small oval aromatic leaves, and short terminal racemes of purple or mauve, two-lipped flowers 1cm across, in early summer
1.5-2.5 metres
1-1.5 metres
| Season | Stem | Flower | Foliage | Fruit |
|---|---|---|---|---|
| Spring | ||||
| Summer | ||||
| Autumn | ||||
| Winter |
Grow under glass in a peat-free, loam-based compost in full light. Grow outdoors only in a frost-free environment with moist but well-drained soil in full sun. Prune after flowering; hard pruning may be detrimental
Propagate by seed or semi-hardwood cuttings
May be susceptible to glasshouse red spider mite and glasshouse whitefly
May be susceptible to honey fungus in gardens where it is present but insufficient data to determine degree of susceptibility