Arnica montana
mountain tobacco
A clump-forming perennial producing a rosette of broadly oval leaves up to 15cm long. In summer it produces deep yellow or orange-yellow flowers 5-8cm across
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Size
Ultimate height
0.1–0.5 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Yellow | Green | ||
| Autumn | Green | |||
| Winter |
Position
- Full sun
Aspect
West–facing or South–facing or East–facing
Exposure
Exposed or Sheltered Hardiness
H6Botanical details
- Family
- Asteraceae
- Native to the UK
- No
- Foliage
- Deciduous
- Habit
- Bushy
- Potentially harmful
- Harmful if eaten, skin allergen. Wear gloves and other protective equipment when handling
- Genus
Arnica are rhizomatous perennials with simple, opposite leaves and daisy-like yellow flowers, solitary or in loose sprays, in summer
- Name status
Correct
- Plant range
- C & N Europe
How to grow
Cultivation
Grow in moist but well-drained, humus-rich soil in a sunny position
Propagation
Propagate by seed sown in a cold frame in autumn, or by division in spring
Suggested planting locations and garden types
- Cottage and informal garden
- Wildlife gardens
- Flower borders and beds
Pruning
Cut down stems once flowering is finished
Pests
May be susceptible to caterpillars and slugs
Diseases
Generally disease-free
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