Quick Guide: summer, hardy, sun or partial shade, height: 1.2-1.8m/4-6ft, width: 30cm/12in

In spite of its majestic, exotic appearance, the lily is generally not difficult to grow. The numerous species and hybrids are divided into 9 groups according to origin, with true species in Division 9. All lily bulbs, made up of tightly packed scales, produce roots from the base, but some also have roots from the stems; this type should be planted deeper than basal-rooting bulbs. Flowers may be trumpet-shaped, bowl-shaped or, in the form called Turk's-cap, with recurved petals. The colour range is very wide, excluding blue.

GROWING Plant fresh bulbs from autumn to spring (basal rooting bulbs always in autumn), about 15cm/6in deep depending on size. A south-facing site sheltered from wind is best; ordinary well-drained soil will do. While some species dislike lime, others prefer it. Enrich soil with well-rotted organic matter before planting.

PROPAGATION Some lilies produce numerous offsets which may be treated in the usual way. Scale propagation is suitable for all types.

SPECIES Lilium regale (above), China, fragrant, white, trumpet flowers 15cm/6in long, stem-rooting bulbs which increase quickly; L. pardalinum (panther lily), California, 5cm/2in orange-red Turk's-cap flowers, basal rooting bulb, needs limefree soil.

POSSIBLE PROBLEMS Leatherjackets; lily beetle larvae.