Geranium × johnsonii 'Johnson's Blue'

Position: full sun or partial shade

Soil: fertile, well-drained soil

Rate of growth: fast-growing

Flowering period: May to August

Hardiness: fully hardy Deep lavender-blue, saucer-shaped flowers appear in early summer among deeply divided, mid-green leaves. The loose clusters of lavender-blue flowers, becoming paler at the centre, look lovely weaving in and out of the front of a mixed border or at the base of flowering shrubs. This geranium rapidly forms a dense carpet of foliage, valuable for suppressing weeds, and if cut back after flowering, will usually produce a second flush of flowers later in the summer.

Garden care: In midsummer rejuvenate plants that are beginning to look jaded, by removing old flowered stems and leaves. Lift and divide large colonies in spring.