Cynoglossum nervosum roseum

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Herbaceous Perennial

An upright, but bushy clump-forming perennial with bristly, narrow, oblong green leaves. Reaches a height of 50cm. Sprays of pink flowers appear from mid-spring to mid-summer

Position

Full sun, Partial shade

Soil Types

Chalk, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.5-1 metres

Size

Time to Maturity
1–2 years
Max Spread
0.5-1 metres
Max Height
0.5-1 metres

Growing Conditions

Chalk Loam Sand
Moisture
Moist but well–drained or Well–drained
pH
Alkaline or Acid or Neutral

Position

Full sun Partial shade
Aspect
West–facing or South–facing or East–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)
H5

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Boraginaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Bushy, Clump forming, Columnar upright
Genus
Cynoglossum can be annuals, biennials or perennials, usually short-lived, with roughly hairy, simple, lance-shaped to oblong leaves and cymes of blue, purple pink or white, forget-me-not-like flowers from spring to autumn
Name Status
Unresolved

How to Grow

Cultivation

Grow in moist, well-drained soil in sun or partial shade

Propagation

Propagate by seed in a cold frame in autumn or spring or by division in spring

Suggested planting locations and garden types

  • City and courtyard gardens
  • Cottage and informal garden
  • Wildlife gardens
  • Coastal
  • Flower borders and beds
  • Wall side borders

Pruning

Cut all foliage back to ground level at the end of the growing season or after flowering if powdery mildews are a problem

Pests

Generally pest-free

Diseases

May be susceptible to powdery mildews