Pulmonaria 'Cotton Cool'
lungwort 'Cotton Cool'
'Cotton Cool' is a semi-evergreen perennial to 30cm tall, with rather upright, narrow silvery-green leaves finely edged with dark green, and sprays of funnel-shaped flowers opening pink and soon turning blue, in spring
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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 | Blue Pink | Green Grey Silver | ||
|---|---|---|---|---|
| Summer | Green Grey Silver | |||
| Autumn | Green Grey Silver | |||
| Winter | Green Grey Silver |
Position
- Full shade
- Partial shade
Aspect
East–facing or North–facing or West–facing
Exposure
Sheltered Hardiness
H6Botanical details
- Family
- Boraginaceae
- Native to the UK
- No
- Foliage
- Semi evergreen
- Habit
- Bushy
- Genus
Pulmonaria can be herbaceous or semi-evergreen rhizomatous perennials with terminal clusters of funnel-shaped flowers in late winter or early spring, and often strikingly patterned leaves developing in summer
- Name status
Accepted
How to grow
Cultivation
Grow in humus-rich, fertile, moist but not waterlogged soil in full or partial shade
Propagation
Propagate by division after flowering or in autumn
Suggested planting locations and garden types
- Coastal
- City and courtyard gardens
- Cottage and informal garden
- Wildlife gardens
- Ground cover
- Banks and slopes
- Flower borders and beds
Pruning
Remove old leaves after flowering
Pests
Generally pest-free
Diseases
May be subject to powdery mildews in dry conditions
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