Phlox drummondii 'Classic Cassis'

RHS Plant Profile
annual phlox 'Classic Cassis'

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annual phlox 'Classic Cassis' visionspictures.com
annual phlox 'Classic Cassis' visionspictures.com
annual phlox 'Classic Cassis' visionspictures.com

Synonyms

Phlox paniculata 'Classic Cassis'
Phlox 'Classic Cassis'

Annual Biennial

An upright annual, to around 45cm high, with narrowly oval, deep green leaves. Clusters of rich pink flowers with dark pink eyes are produced in early summer

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
1 year
Max Spread
0.1-0.5 metres
Max Height
0.1-0.5 metres

Growing Conditions

Chalk Loam Sand
Moisture
Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun
Aspect
South–facing or West–facing
Exposure
Exposed or Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

  • H1A: under glass all year (>15C)
  • H1B: can be grown outside in the summer (10 - 15)
  • H1C: can be grown outside in the summer (5 - 10)
  • H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
  • H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
  • H4: hardy through most of the UK (-10 to -5)
  • H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
  • H6: hardy in all of UK and northern Europe (-20 to -15)
  • H7: hardy in the severest European continental climates (< -20)
H6

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Polemoniaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Columnar upright
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 any fertile, well-drained soil in full sun

Propagation

Propagate by seed in spring

Suggested planting locations and garden types

  • City and courtyard gardens
  • Cottage and informal garden
  • Patio and container plants
  • Bedding
  • Flower borders and beds
  • Cut flowers

Pruning

Cut back after flowering

Pests

May be susceptible to stem and bulb eelworm

Diseases

May be susceptible to powdery mildews and leaf spot