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Herbaceous Perennial

Phlox divaricata 'Blue Perfume'

sweet william 'Blue Perfume'

A compact, mat-forming, semi-evergreen perennial with rounded, hairy mid to dark green leaves. Fragrant lilac-blue 5-petalled flowers appear from late spring to early summer

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Size
Ultimate height
0.1–0.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Loam
Sand
Moisture
Moist but well–drained, Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Purple Blue Green
Summer Purple Blue Green
Autumn Green
Winter Green
Position
  • Full sun
  • Partial shade
Aspect

West–facing or South–facing

Exposure
Sheltered
Hardiness
H5
Botanical details
Family
Polemoniaceae
Native to the UK
No
Foliage
Semi evergreen
Habit
Matforming
Genus

Phlox may be evergreen or herbaceous, mat-forming or erect perennials or shrubs, with simple leaves and salver-shaped flowers in terminal clusters

Name status

Accepted

How to grow

Cultivation

Grow in moist but well-drained, fertile soil, best in partial shade

Propagation

Propagate by taking softwood cuttings of non-flowering stems in spring

Suggested planting locations and garden types
  • Cottage and informal garden
  • Rock garden
  • Banks and slopes
  • Flower borders and beds
  • Underplanting of roses and shrubs
  • Ground cover
Pruning

Deadhead to prolong flowering

Pests

Generally pest-free, though may be susceptible to grazing by rabbits

Diseases

May be susceptible to powdery mildews and a leaf spot

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