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Lithodora diffusa 'Heavenly Blue' (Purple gromwell 'Heavenly Blue')

Skill rating
skill rating
Maintenance level
1 hour care
per year
Ultimate height
Max height
Ultimate spread
Max spread
Time to maturity
5-10 years
To maturity

Botanical name: Lithodora diffusa 'Heavenly Blue'

Other names: Purple gromwell 'Heavenly Blue', Lithospermum 'Heavenly Blue'

Genus: Lithodora

Variety or Cultivar: 'Heavenly Blue' _ 'Heavenly Blue' is a low, mat-forming evergreen shrub, bearing small, hairy leaves and abundant, small, bright blue flowers in spring and summer.

Lithodora diffusa 'Heavenly Blue' is: Evergreen

Flower: Blue in Spring; Blue in Summer

Foliage: Green in Spring; Green in Summer

Habit: Compact, Mat Forming, Spreading

Awards: RHS AGM (Award of Garden Merit)

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General care

Propagation methods: Semi-hardwood cuttings. REGISTER to

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Lithodora diffusa 'Heavenly Blue' (Purple gromwell 'Heavenly Blue') will reach a height of 0.15m and a spread of 0.5m after 5-10 years.

Suggested uses: Banks and Slopes, Beds and borders, Garden edging, Gravel, Ground Cover, Rock

Cultivation: Plant in humus rich, acid to neutral soil, in full sun. Ideal for a rock or gravel garden. Place rocks close to the plant so the soil underneath remains cool and moist in a hot summer.

Soil type: Loamy, Sandy

Soil drainage: Well-drained

Soil pH: Acid, Neutral

Light: Full Sun

Aspect: North, South, East, West

Exposure: Exposed, Sheltered

Hardiness: Hardy (H4)

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This plant likes... Garden match
Soil types: Loamy, Sandy Tell us...
Soil drainage: Well-drained Tell us...
Soil pH: Acid, Neutral Tell us...
Light: Full Sun Tell us...
Aspect: North, South, East, West Tell us...
Exposure: Exposed, Sheltered Tell us...
Hardiness: Hardy (H4) Tell us...


Lithodora Diffusa

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