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Lithodora diffusa Star

Lithodora diffusa Star
Purple Gromwell

4,3/5
25 reviews
6 reviews
3 reviews
1 reviews
3 reviews

It arrived in good condition, I hope it will thrive, but we'll see in the spring.

Sissi, 30/10/2024

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This plant carries a 12 months recovery warranty

More information

Small undershrub with loose habit, covered in magnificent star-shaped flowers, blue and white.
Flower size
1 cm
Height at maturity
15 cm
Spread at maturity
40 cm
Exposure
Sun, Partial shade
Hardiness
Hardy down to -20°C
Soil moisture
Dry soil, Moist soil
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Recommended planting time February to April, September to November
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Flowering time May to June
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Description

The Lithodora diffusa Star is a small undershrub with a loose habit, covered with magnificent bicoloured, blue and white flowers in the shape of a star, blooming from May to June.

This very original variety has trumpet-shaped star flowers, blue and white, that follow one another for several weeks. Its villous, semi-evergreen foliage is a beautiful dark green. The Lithodora Star is the ideal companion for heathers as it has almost the same requirements, but it will also accompany field of plants such as linaria, botanical tulips or creeping artemisias in poor and well-drained soils in partial shade preferably or in the sun.

Lithodora diffusa Star in pictures

Lithodora diffusa Star (Flowering) Flowering
Lithodora diffusa Star (Foliage) Foliage

Flowering

Flower colour black
Flowering time May to June
Flower size 1 cm

Foliage

Foliage persistence Evergreen
Foliage colour dark green

Plant habit

Height at maturity 15 cm
Spread at maturity 40 cm
Growth rate normal

Botanical data

Genus

Lithodora

Species

diffusa

Cultivar

Star

Family

Boraginaceae

Other common names

Purple Gromwell

Origin

Cultivar or hybrid

Product reference96481

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Planting and care

Like heathers, the Lithodora diffusa Star dislikes limestone but tolerates poor, sandy soil, even clay soil as long as it is well-drained by the roots of surrounding trees. Under these conditions, it is very resistant to winter cold temperatures.
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Planting period

Recommended planting time February to April, September to November

Intended location

Suitable for Rockery, Shaded rockery
Type of use Edge of border, Container, Slope
Hardiness Hardy down to -20°C (USDA zone 6b) Show map
Ease of cultivation Amateur
Planting density 5 per m2
Exposure Sun, Partial shade
Soil pH Acidic, Neutral
Soil type Silty-loamy (rich and light), Stony (poor and well-drained)
Soil moisture Dry soil, Moist soil, free draining

Care

Pruning No pruning necessary
Overwinter Can be left in the ground
4,3/5

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