Cynoglossum nervosum
Himalayan hound's tongue
An upright, but bushy clump-forming perennial with bristly, narrow, oblong green leaves. Reaches a height of 60cm. Sprays of the brightest azure flowers appear from mid-spring to mid-summer
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Size
Ultimate height
0.5–1 metresTime to ultimate height
1–2 yearsUltimate spread
0.5–1 metresGrowing conditions
Moisture
Moist but well–drainedpH
Neutral, Alkaline, AcidColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Blue | Green | ||
|---|---|---|---|---|
| Summer | Blue | Green | ||
| Autumn | Green | |||
| Winter |
Position
- Full sun
- Partial shade
Aspect
East–facing or North–facing or South–facing or West–facing
Exposure
Exposed or Sheltered Hardiness
H4Botanical details
- Family
- Boraginaceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Bushy, Clump forming, Columnar upright
- Potentially harmful
- Foliage may irritate skin. Wear gloves and other protective equipment when handling
- 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
Correct
- Plant range
- Himalaya
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
- Coastal
- Cottage and informal garden
- Wildlife gardens
- Flower borders and beds
- Wall side borders
Pruning
Cut all foliage back to ground level at the end of the growing season
Pests
Generally pest-free
Diseases
May be susceptible to a powdery mildew
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