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ShrubsAlpine RockerySynonym

Lithodora diffusa 'Heavenly Blue'
  • RHS AGM

gromwell 'Heavenly Blue'

'Heavenly Blue' is a prostrate evergreen shrub forming a wide mat up to 15cm in height, with small, hairy leaves and abundant, vivid deep blue flowers 12mm in width

Other common names
purple gromwell 'Heavenly Blue'
Synonyms
Lithodora diffusa 'Heavenly Blue'
Lithospermum diffusum 'Heavenly Blue'
see moreLithospermum 'Heavenly Blue'

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Size
Ultimate height
0.1–0.5 metres
Time to ultimate height
5–10 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Loam
Sand
Moisture
Well–drained
pH
Acid, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Blue Green
Summer Blue Green
Autumn Green
Winter Green
Position
  • Full sun
Aspect

East–facing or South–facing or North–facing or West–facing

Exposure
Exposed or Sheltered
Hardiness
H5
Botanical details
Family
Boraginaceae
Native to the UK
No
Foliage
Evergreen
Habit
Matforming
Name status

Accepted

How to grow

Cultivation

Excellent for an open, sunny position with an acidic soil in a rock garden or raised bed

Propagation

Propagate by semi-hardwood cuttings

Suggested planting locations and garden types
  • Gravel garden
  • Rock garden
  • Patio and container plants
Pruning

Pruning group 8

Pests

Generally pest free

Diseases

Generally disease free

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