Lewisia in bloom is sure to please – yellows and reds predominate and so themay be pink, peach or orange as well as white. The petals are frequently striped – a colourful for early summer. Unfortunately this American plant is not easy to keep alive in the rockery. The fleshy form a rosette and rotting of the crown takes place if water is allowed to stand in the heart of this rosette during winter. The answer is to plant Lewisia sideways in a crevice between rocks or in a crack between bricks.
VARIETIES: You are most likely to be offered a hybrid of the ever-green L. cotyledon – height 1 ft. spread 9 in.
Flowering period: May-June. The other species are more difficult to grow – there is the white-flowering L. brachycalyx which blooms in May; the aristocrat of the group is L. tweedyi (height 6 in., spread 9 in.) which bears 2 in. silky flowers in April and May.
SITE AND SOIL: Requires well-drained soil in full sun.
PROPAGATION: Sowunder glass in early spring or plant offsets as in a cold frame in early summer.