Phlox amplifolia
large-leaved phlox
An upright perennial, to around 1.2m high, with spreading rhizomes and broadly lance-shaped, hairy green leaves. Loose clusters of pink, purple or white flowers, with long corolla tubes and flat faces, are borne on slender stems well above the foliage in summer
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Size
Ultimate height
1–1.5 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Pink Purple White | Green | ||
| Autumn | ||||
| Winter |
Position
- Full sun
- Partial shade
Aspect
South–facing or West–facing
Exposure
Exposed or Sheltered Hardiness
H6Botanical details
- Family
- Polemoniaceae
- Native to the UK
- 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
Correct
How to grow
Cultivation
Thrives in moist but well-drained soil in full sun or part shade. This species has some tolerance to drought
Propagation
Propagate by division in autumn or spring, by basal softwood cuttings in spring or by root cuttings in early autumn or winter
Suggested planting locations and garden types
- Cottage and informal garden
- Prairie planting
- Wildflower meadow
- Flower borders and beds
Pruning
Deadhead to prolong flowering then cut down to the base in late autumn
Pests
May be susceptible to stem and bulb eelworm
Diseases
May be susceptible to fungal leaf spot. This species has some resistance to powdery mildews
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