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Herbaceous Perennial

Phlox paniculata 'David's Lavender'

perennial phlox 'David's Lavender'

An upright clump-forming herbaceous perennial that forms a bushy mound of attractive dark green foliage of narrow, opposite, eliptic leaves and large clusters of tall stemmed fragrant lavender-mauve flowers in mid summer. It has good resistance to powdery mildew.

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Ultimate height

1–1.5 metres

Time to ultimate height

2–5 years

Ultimate spread

0.5–1 metres

Sand

Clay

Loam

Chalk

Moisture

Moist but well–drained

pH

Acid, Neutral, Alkaline

	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: 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

Will grow well in fertile moist but well-drained soil in full sun or partial shade. Apply fertilizer in Spring to promote growth or a thin layer of compost top dressing to add nutrients to the soil. Pinch back growing tips to promote bushiness.

Propagation

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

Suggested planting locations and garden types

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

Pruning

Deadhead to promote continous flowering and cut back to the base in late autumn or early winter

Pests

May be susceptible to stem and bulb eelworm

Diseases

May be susceptible to Powdery mildews, grey moulds and leafy gall

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