There are also some true Rockery Violets which should be grown.
VARIETIES: Both V. aetolica
Flowering period: May-June) and V.biflora (April-May) produce yellowon short stalks. The basic details of these two Rockery Violets are height 2 in., spread 1 ft. In April V. labradorica ‘Purpurea’ (height 3 in., spread 1 ft) bears white-throated violet blooms above purple-tinged . If you see Violet flowers which are white with purple veins, the species is probably V. cucullata. Varieties of V. gracilis (height 4 in., spread 1 ft.
Flowering period: April-June) are grown in rockeries – good examples are ‘Major’ (yellow-eyed purple) and ‘Moonlight’ (yellow).
SITE AND SOIL: Any well-drained soil – thrives in sun or partial shade.
PROPAGATION: Plantin a cold frame in summer.