RHS A half-hardy, bushy, deciduous perennial with a neat habit and dark green foliage. Masses of fragranced pale mauve to lilac pink and white bicolor flowers with yellow centres appear from summer through until autumn
0.1-0.5 metres
0.1-0.5 metres
| Season | Stem | Flower | Foliage | Fruit |
|---|---|---|---|---|
| Spring | ||||
| Summer | ||||
| Autumn | ||||
| Winter |
Grow in moist but well-drained, fertile, ideally slightly acid, soil in full sun. Water well in dry spells to maintain flowering
Propagate by seed, or take softwood cuttings from the ends of non-flowering shoots in late summer and overwinter in frost-free conditions or take softwood cuttings in spring
Pinch out growing tips to produce bushy plants, and trim off flowering shoots when initial flowering is finished to promote more flowers
Generally pest-free but may be susceptible to aphids
Generally disease-free, but may be susceptible to foot and root rots in wet soils