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Herbaceous Perennial

Agapanthus 'Arctic Star'
  • RHS AGM

African lily 'Arctic Star'

A clump-forming, herbaceous perennial to about 90cm, with relatively wide, dark grey-green, strap-shaped leaves. Rounded flowerheads, 25cm across, with funnel-shaped, pure white flowers, are produced in mid- to late summer, followed by decorative seed heads

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Size
Ultimate height
0.5–1 metres
Time to ultimate height
2–5 years
Ultimate spread
0.5–1 metres
Growing conditions
Chalk
Loam
Sand
Moisture
Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green Grey Silver
Summer White Green Grey Silver
Autumn Green Grey Silver Green
Winter Brown
Position
  • Full sun
Aspect

South–facing or West–facing

Exposure
Sheltered
Drought resistance
Yes
Hardiness
H4
Botanical details
Family
Amaryllidaceae
Native to the UK
No
Foliage
Deciduous
Habit
Clump forming
Potentially harmful
Humans/Pets (dogs, cats): harmful if eaten. Wear gloves and other protective equipment when handling. For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus

Agapanthus are clump-forming perennials with narrowly strap-shaped leaves, evergreen in some species, and erect stems bearing umbels of funnel-shaped blue or white flowers

Name status

Accepted

How to grow

Cultivation

Grow in fertile, moist but well-drained soil in full sun or grow in a container. In cold areas, mulch well overwinter and take containers under cover. See agapanthus cultivation

Propagation

Propagate by division every three to four years in spring

Suggested planting locations and garden types
  • City and courtyard gardens
  • Coastal
  • Cottage and informal garden
  • Mediterranean climate plants
  • Patio and container plants
  • Banks and slopes
  • Cut flowers
  • Flower borders and beds
  • Wall side borders
Pruning

In late autumn remove any remaining leaves; seedheads can be left as they look attractive over winter

Pests

May be susceptible to slugs and snails and agapanthus gall midge

Diseases

May be susceptible to a virus disease

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