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40 - 60cm
Planting position: Full sun.
Suitable for all growing regions without humidity.
Requires regular and generous watering.
Lime induced sandy soil, enriched with compost and complete fertiliser.
Applications of liquid fertiliser while in flower.
Watch out for aphids, fungal diseases and mildew.
Propagate from seed or root division.
These Easy-growing perennials/annuals have attractive foliage and its blooms appear mostly through summer.
C. cyanus is popular for its long-lasting, circular blue spring flowers.
C. dealbata (60cm) has greyish-green, fern-like foliage and pink flowers.
C. macrocephala (40cm) with yellow flowers and large leaves.
C. montana (40cm) produces stunning, rich blue flowers.
C. moschata with fluffy summer flowers in purple, lavender, pink and yellow shades.
C. rutifolia is known for its attractive silvery foliage.