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Herbaceous Perennial

Agapanthus Blue Storm ('Atiblu'PBR) (Storm Series)

African lily [Blue Storm]

An evergreen perennial to about 75cm tall, producing a clump of narrow, glossy, strap-shaped leaves and rounded umbels of soft violet-blue, funnel-shaped flowers over a long period in summer

Synonyms
Agapanthus 'Atiblu'PBR
Agapanthus praecox 'Blue Storm'
© RHS
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Size
Ultimate height
0.5–1 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Blue Green
Autumn Green
Winter Green
Position
  • Full sun
Aspect

South–facing or West–facing or East–facing

Exposure
Sheltered
Drought resistance
Yes
Hardiness
H4
Botanical details
Family
Amaryllidaceae
Native to GB / Ireland
No
Foliage
Evergreen
Habit
Bushy
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

Trade

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How to grow

Cultivation

In mild areas, grow in well-drained soil in a sunny, sheltered position. Otherwise grow in a container and position in full sun. Water during the growing season and liquid feed monthly from spring to flowering. Overwinter the whole container in a cold greenhouse. See agapanthus cultivation

Propagation

Propagate by division every three to four years in spring

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

No need to cut down in the autumn, as the seedheads look attractive over winter

Pests

May be susceptible to slugs and snails and agapanthus gall midge

Diseases

May be susceptible to a virus

Get involved

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