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Herbaceous Perennial

Agapanthus 'Sylvine'

African lily 'Sylvine'

A compact, clump-forming, herbaceous perennial to about 70cm, with strap-shaped leaves. Rounded heads of funnel-shaped flowers, of mid-blue petals with deep blue midribs, are produced in late summer and early autumn

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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
Summer Blue Green
Autumn Blue Green
Winter
Position
  • Full sun
Aspect

South–facing or West–facing

Exposure
Sheltered
Hardiness
H4
Botanical details
Family
Amaryllidaceae
Native to GB / Ireland
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

In mild areas, plant out in well-drained soil in a sunny, sheltered position. Otherwise, grow in a container in a sunny spot, and overwinter indoors, in a cool greenhouse or conservatory to protect from frost. Water during the growing season and liquid feed monthly from spring to flowering. See agapanthus cultivation

Propagation

Propagate by division in spring

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

No pruning required; seedheads can provide good winter structure

Pests

May be susceptible to agapanthus gall midge, slugs and snails

Diseases

May be susceptible to a virus

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