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Herbaceous Perennial

Phlox × arendsii 'Hesperis'

phlox 'Hesperis'

An upright perennial, with leafy stems to 80cm in height. Domed heads of lilac-pink scented flowers appear from midsummer into early autumn

Synonyms

Phlox paniculata 'Hesperis'

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Ultimate height

0.5–1 metres

Time to ultimate height

1–2 years

Ultimate spread

0.1–0.5 metres

Chalk

Clay

Loam

Sand

Moisture

Moist but well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun
Partial shade

Aspect

West–facing or South–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)

Botanical details

Family: Polemoniaceae
Native to GB / Ireland: No
Foliage: Deciduous
Habit: Clump forming
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

Propagation

Propagate by division in autumn or spring, by basal cuttings in spring or by root cuttings in early autumn or winter

Suggested planting locations and garden types

City and courtyard gardens
Cottage and informal garden
Flower borders and beds
Cut flowers

Pruning

Deadhead to promote flowering, and cut back in autumn

Pests

May be susceptible to stem eelworms

Diseases

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

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