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Allium 'Beau Regard' AGM

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© RHS

Characteristics

Plant type

Bulb

Habit

Bushy

Fragrance

Leaf

Resilience

Hardiness

H7 (very hardy)

Colour

Flower

Pale Purple in Summer

Foliage

Green in Spring and Summer

Size

Ultimate height

0.5-1 metres

Ultimate spread

0.1-0.5 metres

Time to ultimate height

2-5 years


Preferred common name

allium 'Beau Regard'

Family

Alliaceae


Allium are bulbous herbaceous perennials with a strong onion or garlic scent, linear, strap-shaped or cylindrical basal leaves and star-shaped or bell-shaped flowers in an umbel on a leafless stem

'Beau Regard' is a tall, upright bulbous perennial with broad strap-shaped, spreading, glossy leaves and starry light purple flowers in compact, rounded clusters to 20cm across, in summer

How to grow

Sunlight

  • Full sun

Aspect

  • South-facing, North-facing, West-facing or East-facing
  • Sheltered

Cultivation

Easy to grow in fertile well-drained soil. Add grit when grown in clay soils to improve drainage

Soil

  • Well-drained or Moist but well-drained
  • Acid, Alkaline or Neutral
  • Sand, Clay, Chalk or Loam

Propagation

Propagate by seed, sowing in containers in a cold frame when just ripe or in the spring. Alternatively, remove offsets in autumn

Suggested planting locations and garden types

Architectural, City/Courtyard Gardens, Cottage/Informal Garden, Flower borders and beds or Gravel Garden


How to care

Pruning

No pruning required

Pests

Generally pest free

Diseases

Generally trouble-free: Onion white rot and a downy mildew may occur