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Herbaceous PerennialGrass Like

Dianella revoluta 'Allyn Citation'PBR

flax lily 'Allyn Citation'

A compact, half-hardy evergreen perennial to around 40cm high, with dense clumps of narrow, stiff blue-green leaves. In early to mid summer, produces a few sprays of nodding light blue flowers held above the foliage, occasionally followed by round blue berries

Synonyms
Dianella revoluta Coolvista
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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
Loam
Sand
Moisture
Well–drained
pH
Acid, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Blue Green
Summer Blue Blue Green Blue
Autumn Blue Green Blue
Winter Blue Green
Position
  • Full sun
  • Partial shade
Aspect

South–facing or West–facing

Exposure
Exposed or Sheltered
Drought resistance
Yes
Hardiness
H3
Botanical details
Family
Asphodelaceae
Native to GB / Ireland
No
Foliage
Evergreen
Habit
Tufted, Clump forming
Potentially harmful
Fruit are ornamental - not to be eaten. Wear gloves and other protective equipment when handling Pets: Fruit are ornamental - not to be eaten - see the HTA guide to potentially harmful plants for further information and useful contact numbers
Genus

Dianella are rhizomatous evergreen perennials with leathery, sword-shaped leaves and sprays of small, starry deep blue flowers followed by long-lasting blue or purple berries

Name status

Accepted

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How to grow

Cultivation

In milder areas, grow outdoors in moderately fertile, well-drained, neutral to acid soil in full sun or partial shade. In areas prone to hard frosts, grow under glass in peat-free, loam-based compost, in full light with shade from hot sun. Water well in growth and keep just moist in winter.

Propagation

Propagate by division in mid-spring. As this plant is protected by Plant Breeders' Rights, any propagation should be for personal rather than commercial use

Suggested planting locations and garden types
  • City and courtyard gardens
  • Cottage and informal garden
  • Coastal
  • Gravel garden
  • Patio and container plants
  • Low Maintenance
  • Conservatory and greenhouse
Pruning

No pruning required

Pests

Generally pest-free

Diseases

Generally disease-free

Get involved

The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.