Kalmia polifolia
bog kalmia
A small, evergreen shrub growing to a height of 60cm, with sparse branches and thin, glossy, gark green leaves. In mid and late spring, purple-pink saucer shaped flowers are borne
Synonyms
Kalmia glauca
Size
Ultimate height
0.5–1 metresTime to ultimate height
5–10 yearsUltimate spread
0.5–1 metresGrowing conditions
Moisture
Moist but well–drained, Poorly–drainedpH
AcidColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Pink Purple | Green | ||
|---|---|---|---|---|
| Summer | Green | |||
| Autumn | Green | |||
| Winter | Green |
Position
- Full sun
- Partial shade
Aspect
East–facing or North–facing or South–facing or West–facing
Exposure
Exposed or Sheltered Hardiness
H5Botanical details
- Family
- Ericaceae
- Native to the UK
- No
- Foliage
- Evergreen
- Habit
- Clump forming
- Potentially harmful
- Harmful if eaten. Wear gloves and other protective equipment when handling
- Genus
Kalmia are evergreen shrubs with simple, leathery leaves and racemes or corymbs of bowl-shaped flowers in spring or summer
- Name status
Correct
- Plant range
- N North America
How to grow
Cultivation
Grow in moist, acidic soil enriched with acidic organic matter such as leaf mould, in part shade. Sun is tolerated if the soil is kept moist in summer
Propagation
Propagate by greenwood cuttings in summer, hardwood cuttings in midwinter, by seed in winter to early spring or by layering in spring
Suggested planting locations and garden types
- Cottage and informal garden
- Low Maintenance
- Flower borders and beds
- Wall side borders
Pruning
Pests
Generally pest-free
Diseases
May be susceptible to honey fungus in gardens where it is present but insufficient data to determine degree of susceptibility
Get involved
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