Phlox kelseyi 'Rosette'

RHS Plant Profile

Kelsey's phlox 'Rosette'

Synonyms

Phlox 'Rosette'

Alpine Rockery Herbaceous Perennial

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A compact, mat-forming, hardy evergreen perennial with stiff, narrow, lance-shaped grey-green foliage and star-shaped pink flowers with dark, reddish-purple centres which appear from midsummer

Position

Full sun, Partial shade

Soil Types

Chalk, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity: 5–10 years
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 Partial shade

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
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: Bushy, 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: Unresolved

How to Grow

Cultivation

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

Propagation

Propagate by softwood cuttings of non-flowering stems in spring

Suggested planting locations and garden types

Cottage and informal garden
Gravel garden
Rock garden
Patio and container plants
Low Maintenance
Garden edging

Pruning

No pruning required, but may be trimmed after flowering

Pests

May be susceptible to phlox eelworm

Diseases

May be susceptible to powdery mildews, grey moulds, leafy gall and leaf spot