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Alpine Rockery

Phlox subulata 'White Delight'

moss phlox 'White Delight'

A prostate mat-forming evergreen alpine, with mid-green needle-like leaves and pure white flowers produced in the spring and summer

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Ultimate height

0.1–0.5 metres

Time to ultimate height

2–5 years

Ultimate spread

0.1–0.5 metres

Chalk

Loam

Sand

Moisture

Moist but well–drained, Well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun
Partial shade

Aspect

East–facing or 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)

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 well-drained soil in full sun or dappled shade

Propagation

Propagate by softwood cuttings in spring. Detach rooted pieces of stem in spring or early autumn.

Suggested planting locations and garden types

City and courtyard gardens
Cottage and informal garden
Rock garden
Low Maintenance
Garden edging

Pruning

No pruning required

Pests

Maybe susceptible to eelworm (leaf and bud) and eelworm (stem and bulb)

Diseases

May be susceptible to leaf spot and powdery mildew

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