Pulmonaria saccharata '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
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
Get involved
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