Phlox drummondii 'Buttons Blue Shades' (Buttons Series)

RHS Plant Profile
annual phlox 'Buttons Blue Shades'

Save a plant

Where do you want to save Phlox drummondii 'Buttons Blue Shades' (Buttons Series)?

Plants I own
Wishlist
Go to My Plants
annual phlox 'Buttons Blue Shades' Copyrighted 2003
Annual Biennial Bedding

An erect annual to 20cm, with narrow leaves and terminal clusters of salver-shaped blue flowers 3cm across, which fade to white

Position

Full sun

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
1–2 years
Max Spread
0.1-0.5 metres
Max Height
0.1-0.5 metres

Growing Conditions

Chalk Clay 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 fertile, moist soil in full sun or partial shade. See phlox cultivation for further advice

Propagation

Propagate by seed

Suggested planting locations and garden types

  • Patio and container plants
  • Cottage and informal garden
  • Flower borders and beds

Pruning

No pruning required

Pests

May be susceptible to phlox eelworm

Diseases

May be susceptible to powdery mildews and a leaf spot