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Herbaceous Perennial

Agapanthus 'Cally Blue'

African lily 'Cally Blue'

A slow-growing, dwarf style, herbaceous perennial reaching between 30 to 60cm in height, when in flower. Above a neat clump of narrow strap-like, green, deciduous leaves, numerous flowering stems bear purplish blue funnel-shaped flowers in rounds heads, in late summer and early autumn

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Size
Ultimate height
0.5–1 metres
Time to ultimate height
5–10 years
Ultimate spread
0.5–1 metres
Growing conditions
Chalk
Loam
Sand
Moisture
Moist but well–drained, Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Blue Purple Green
Autumn Blue Purple Green
Winter
Position
  • Full sun
Aspect

East–facing or South–facing or West–facing or North–facing

Exposure
Sheltered
Drought resistance
Yes
Hardiness
H5
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

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How to grow

Cultivation

Grow in fertile moist, but well-drained soil in full sun. In cold areas mulch hardy hybrids in winter. In containers grow in a loam based compost (JINo.3). Apply a balanced liquid feed monthly from spring until flowering. For more information see agapanthus cultivation.

Propagation

Propagate by seed when ripe in autumn or spring and keep seedlings in cold frame overwinter - they will flower in 2-3years or propagate by division every three to four years in spring

Suggested planting locations and garden types
  • City and courtyard gardens
  • Cottage and informal garden
  • Patio and container plants
  • Flower borders and beds
Pruning

Remove leaves as they naturally die back, deadhead complete flower stems as flowers go over

Pests

May be susceptible to slugs and snails and agapanthus gall midge

Diseases

May be susceptible to a virus

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