Lithodora diffusa 'Star'


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Key information

Plant type

Evergreen shrub

Flower colour






Skill level


Lithodora diffusa 'Star'

Plant details

Lithodora, once called Lithospermum, has gentian-like flowers during the middle of the summer when few true gentians are blooming. Lithodora is easy to grow and flowers well. Its evergreen mats of foliage spread slowly to make good ground cover on a rock garden or scree.

Lithodora ‘Star’ produces flowers that have a white edge, making the radiating blue colour of the flowers appear star-like. It's perfect for growing in an open, sunny situation. Grow in well-drained, acidic soil in full sun. Propagate by semi-hardwood cuttings.

Family: Boraginaceae

Genus: Lithodora

Species: diffusa

Cultivar: Star

Plant type: Evergreen shrub

Flower colour: Blue

Foliage colour: Mid-green

Feature: Flowers

Sun exposure: Full sun, Partial shade

Soil: Well-drained/light, Chalky/alkaline, Acidic

Hardiness: Tender

Skill level: Experienced

Height: 15cm

Spread: 60cm

Time to take cuttings: May to July

Flowering period: June to August

Reader reviews


The soil type shown above is chalky/alkaline but my Lithodora plant label says "acid soils" which is confirmed by a web search. Is your information incorrect?


I'm trying the soil type as above reading:
"Unlike many rock plants, lithodora needs a humus-rich soil, rather than a gritty one, so make a special planting pocket for them. Place several rocks close to the plant so the soil underneath remains cool and moist in a hot summer, giving the roots a reliable comfort zone."
as I'm planting in a narrow border by pond edging, seems ideal for that place.
It would be useful to keep in touch.

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