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Veronicastrum virginicum 'Fascination'

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© RHS

Characteristics

Plant type

Herbaceous Perennial

Habit

Bushy

Resilience

Hardiness

old H4 (hardy)

Colour

Flower

Blue in Autumn and Summer

Foliage

Green in Autumn, Spring and Summer

Size

Ultimate height

1-1.5 metres

Ultimate spread

0.5-1 metres

Time to ultimate height

2-5 years


Preferred common name

Culver's root 'Fascination'

Family

Plantaginaceae


Veronicastrum are tall herbaceous perennials with erect stems bearing narrow leaves in whorls, and long terminal racemes of small flowers in summer

'Fascination' is an upright perennial to 1.2m tall, with whorls of lance-shaped, toothed leaves and dense, slender, branched spikes of small light violet-blue flowers in summer and early autumn

How to grow

Sunlight

  • Full sun
  • Part shade

Aspect

  • South-facing, East-facing or West-facing
  • Exposed

Cultivation

Grow in moderately fertile, humus-rich, moist soil in full sun or partial shade

Soil

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

Propagation

Propagate by division in spring

Suggested planting locations and garden types

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


How to care

Pruning

Remove flower spikes as they fade

Pests

Generally pest free

Diseases

May be subject to a downy mildew, powdery mildews and a leaf spot