A herbaceous perennial 1-1.2m high with deciduous strap-shaped green leaves, up to 50cm long and 2cm wide, and heads 13cm across of trumpet-shaped flowers, 3.5cm across, which face upwards or slightly downwards and are white with violet-blue midribs and margins, from late summer to early autumn
1-1.5 metres
0.5-1 metres
| Season | Stem | Flower | Foliage | Fruit |
|---|---|---|---|---|
| Spring | ||||
| Summer | ||||
| Autumn | ||||
| Winter |
In milder areas, grow outside in moisture-retentive but well-drained soil in full sun, and provide winter protection with a dry mulch; in colder areas, grow in containers in peat-free, loam-based compost, water freely when in growth but sparingly in winter, and apply a balanced liquid fertilizer monthly from spring until flowering; for more advice, see Agapanthus cultivation
Propagate by division between spring and early summer, or in early autumn after plants have finished flowering
No pruning required except cutting back dead flower stems, but allow them to remain until spring, because the seedheads look attractive over winter
May be susceptible to slugs and snails and agapanthus gall midge
May be susceptible to a virus