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Herbaceous Perennial

Agapanthus 'Tom Thumb'PBR

African lily 'Tom Thumb'

A compact, clump-forming herbaceous perennial with strap-shaped mid-green leaves and sturdy stems which produce dense, rounded heads of trumpet-shaped mid to dark blue flowers in the autumn

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Size
Ultimate height
0.1–0.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 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 Green
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
Evergreen
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
  • Patio and container plants
  • Architectural
  • Cut flowers
  • Flower borders and beds
Pruning

In late autumn remove or tidy up any remaining leaves, but 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

Get involved

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