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Herbaceous PerennialSynonym

Phlox 'Chattahoochee'

sweet william 'Chattahoochee'

A low-growing semi-evergreen perennial to 15cm in height, with purplish stems, lance-shaped leaves and terminal clusters of slightly fragrant, purple-eyed lavender-blue flowers 2.5cm across

Synonyms
Phlox 'Chattahoochee'
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Size
Ultimate height
Up to 10cm
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green Purple
Summer Green Purple Blue Purple
Autumn Green Purple
Winter Green Purple
Position
  • Partial shade
Aspect

East–facing or West–facing

Exposure
Exposed or Sheltered
Hardiness
H5
Botanical details
Family
Polemoniaceae
Native to GB / Ireland
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 fertile, humus-rich, moist but well-drained soil in partial shade

Propagation

Propagate by division in autumn or spring. Propagate by basal cuttings spring or propagate by root cuttings in early autumn or winter.

Suggested planting locations and garden types
  • Flower borders and beds
  • Underplanting of roses and shrubs
Pruning

No pruning required

Pests

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

Diseases

May be affected by powdery mildews

Get involved

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