Family: Myrtaceae

These Western Australian shrubs are quite beau­tiful and make delightful garden ornamentals in warm climates, or attractive conservatory specimens in cooler areas. They flower pro­fusely in colours ranging from white and shades of pink to cream and yellow. Hypocalymmas produce good cut flowers. Native habitats vary greatly so species should be selected to suit local conditions.

Species

H. angustifolium is a hardy, spreading shrub, to 1 m (3 ft) tall, with fine foliage and deep pink flowers in spring and summer. It tol­erates wet, swampy conditions.

H. cordifolium, a spreading shrub, to 1 m (3 ft), has white spring flowers. The young growth is a reddish colour, turning to light green as it matures. It tol­erates poor drainage, but needs ample water in summer. Semi-shade is best.

H. robustum, Swan River myrtle, to 60 cm (24 in), has masses of deep pink flowers, tipped with gold, in spring. It prefers light shade.

Cultivation

All species need to be grown in well-drained soil. Most prefer shade in the hottest part of the day and dappled shade at other times. Under glass, grow in cool, airy condi­tions, in pots of soil-based potting compost, with extra grit added. Ensure plants receive maximum light, but shade them from direct strong sun. Propagate from seed in spring (do not cover seeds with compost) or from semi-ripe cuttings in late summer, both with basal warmth.

Climate

Warmer parts of zone 9.