Verbascum 'Caribbean Crush'

RHS Plant Profile
mullein 'Caribbean Crush'

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mullein 'Caribbean Crush' RHS

Synonyms

Verbascum bombyciferum 'Caribbean Crush', Verbascum 'Mango'

Herbaceous Perennial
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An upright, rosette-forming, sometimes short-lived perennial to 1.2m with woolly, grey-green leaves up to 25cm long. From late spring to summer upright, unbranched spikes of saucer-shaped flowers in tones of apricot, yellow, pink and bronzy-orange appear, all on the same plant

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

1-1.5 metres

Max Spread

1-1.5 metres

Size

Time to Maturity
2–5 years
Max Spread
1-1.5 metres
Max Height
1-1.5 metres

Growing Conditions

Chalk Loam Sand
Moisture
Well–drained
pH
Alkaline

Position

Full sun
Aspect
West–facing or South–facing
Exposure
Exposed or Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

  • H1A: under glass all year (>15C)
  • H1B: can be grown outside in the summer (10 - 15)
  • H1C: can be grown outside in the summer (5 - 10)
  • H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
  • H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
  • H4: hardy through most of the UK (-10 to -5)
  • H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
  • H6: hardy in all of UK and northern Europe (-20 to -15)
  • H7: hardy in the severest European continental climates (< -20)
H6
Drought Resistance
Yes

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Scrophulariaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Columnar upright
Genus
Verbascum can be annuals, biennials, perennials or subshrubs mostly with hairy leaves and 5-petalled, saucer-shaped flowers
Name Status
Accepted

How to Grow

Cultivation

Grow in poor, alkaline, well-drained soil in full sun. A drought-tolerant plant, which can grow large and need support in fertile soils. See verbascum for further advice

Propagation

Propagate by division in spring or by root cuttings in winter

Suggested planting locations and garden types

  • Cottage and informal garden
  • Gravel garden
  • Flower borders and beds

Pruning

Remove faded flower spikes

Pests

May be susceptible to mullein moth caterpillars and figwort weevil

Diseases

May be susceptible to Powdery mildews