Phlox douglasii 'Boothman's Variety'

RHS Plant Profile

phlox 'Boothman's Variety'

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Synonyms

Phlox 'Boothman's Variety'

Alpine Rockery Herbaceous Perennial

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A neat, mat-forming evergreen perennial to 10cm in height, with small, awl-shaped, dark green leaves and rounded, dark-eyed purplish-pink flowers 1.5cm across from late spring

Position

Full sun, Partial shade

Soil Types

Chalk, Loam, Sand

Max Height

Up to 10 cm

Max Spread

0.1-0.5 metres

Size

Time to Maturity: 2–5 years
Max Spread: 0.1-0.5 metres
Max Height: Up to 10 cm

Growing Conditions

Chalk Loam Sand

Moisture: Well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun Partial shade

Aspect: South–facing or West–facing or East–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
Drought Resistance: Yes

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Polemoniaceae
Native to GB/Ireland: No
Foliage: 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, well-drained soil in full sun or partial shade. Suitable for rock garden, alpine house, in dry walls or as edging

Propagation

Propagate by softwood cuttings of non-flowering stems

Suggested planting locations and garden types

Gravel garden
Rock garden
Patio and container plants
Ground cover
Underplanting of roses and shrubs

Pruning

No pruning required

Pests

May be susceptible to phlox eelworm

Diseases

May be susceptible to powdery mildews and a leaf spot