Botanical name: Lithodora diffusa 'Heavenly Blue'
Other names: Purple gromwell 'Heavenly Blue', Lithospermum 'Heavenly Blue'
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)
Propagation methods: Semi-hardwood cuttings. REGISTER to read more...
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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I have been growing this alpine for the first time this year. It's planted in a container using John Innes 2. It produced a flush of beautiful blue gentian coloured flowers. These are now finishing and the leaves which were a healthy looking green are turning black and dying. There are some new green shoots arising in a few places including some new flower buds, so I know the plant is still alive. But should the old leaves that came with the first flush have died so quickly or is that normal for this plant?
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