Lithodora
Common Name: Lithodora
Genus: Lithodora
Species: diffusa
Cultivar: 'Heavenly Blue'
Skill Level: Experienced
Exposure: Full sun, Partial shade
Hardiness: Tender
Soil type: Well-drained/light, Chalky/alkaline
Height: 15cm
Spread: 60cm
Time to take cuttings: May to July
Flowering period:
June
to
August
Lithodora, once called lithospermum, has gentian-like flowers during the middle of the summer when few true gentians are blooming. Lithodora is, in any case, easy to grow and flowers well. The evergreen mats of foliage spread slowly to make good ground cover on a rock garden or scree. 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. The Royal Horticultural Society has given it its prestigious Award of Garden Merit (AGM).
Looks good with:
Penstemon heterophyllus 'Heavenly Blue'Rosmarinus officinalis 'Prostratus'
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