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Herbaceous Perennial

Verbascum 'Petra'

mullein 'Petra'

A rosette-forming, short-lived, semi-evergreen perennial to 1m with hairy, crinkled, greyish-green foliage. Substantial spires of saucer-shaped, terracotta flowers open from purple buds from early summer through to autumn

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Size
Ultimate height
0.5–1 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Loam
Sand
Moisture
Well–drained
pH
Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green Grey Silver
Summer Brown Pink Green Grey Silver
Autumn Brown Pink Green Grey Silver
Winter Green Grey Silver
Position
  • Full sun
Aspect

South–facing or West–facing

Exposure
Exposed or Sheltered
Drought resistance
Yes
Hardiness
H5
Botanical details
Family
Scrophulariaceae
Native to the UK
No
Foliage
Semi evergreen
Habit
Columnar upright
Genus

Verbascum can be annuals, biennials, perennials or subshrubs mostly with hairy leaves and 5-petalled, saucer-shaped flowers

Name status

Unresolved

How to grow

Cultivation

Grow in alkaline, poor, well-drained soil in a sunny position. Plants grown in fertile soil may need support, see staking perennials

Propagation

Propagate by division in spring or take root cuttings in winter

Suggested planting locations and garden types
  • Cottage and informal garden
  • Gravel garden
  • City and courtyard gardens
  • Flower borders and beds
  • Cut flowers
Pruning

Remove faded flower spikes

Pests

May be susceptible to caterpillars, including mullein moth, and to figwort weevils

Diseases

May be susceptible to Powdery mildews

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