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Phlox subulata 'Emerald Cushion Blue'

Moss Phlox

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Key information

Plant type

Hardy perennial

Flower colour






Skill level


photo by Jo Whitworth, copyright GAP Photos (216130)

Plant details

A dense, mound-forming evergreen perennial that forms cushions of hairy, narrow, bright green leaves. Plants produce blue star-like flowers from late spring to early summer. It is ideal in rock gardens, as edging for a flower border, or in stone troughs. Moss phlox prefers full sun to partial shade and tolerates a range of soils. Dead head regularly to encourage extended bloom period.

Family: Polemoniaceae

Genus: Phlox

Species: subulata

Cultivar: Emerald Cushion Blue

Plant type: Hardy perennial

Flower colour: Blue

Foliage colour: Mid-green

Feature: Flowers

Sun exposure: Full sun

Soil: Well-drained/light, Chalky/alkaline

Hardiness: Hardy

Skill level: Beginner

Height: 10cm

Spread: 50cm

Time to take cuttings: March to May

Flowering period: April to June

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