yarrow 'Petra'
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A clump-forming perennial to 60cm tall with finely-divided, greyish-green foliage. Dense, flattened clusters of tiny dark red flowers with white eyes are borne form summer into autumn; the deep red colour of this cultivar's flowers does not tend to fade with age
Scientific classification
- Species
- yarrow 'Petra' (Achillea 'Petra')
- Genus
- Achillea
- Family
- Asteraceae
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- Toxicity
- Herbaceous Perennial
- Plant type
- 0.5-1 metres
- Height
- 0.1-0.5 metres
- Spread
- Deciduous
- Foliage
- Bushy
- Habit
- Spring · Summer · Autumn
- Season of interest
- Full sun
- Sunlight
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- Ideal temperature
yarrow 'Petra' pictures
Distribution of yarrow 'Petra'
Distribution map
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Culture
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Toxicity
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Quick identification of yarrow 'Petra'
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yarrow 'Petra' care guide
- Moderate regular watering, allowing brief slight drying between soakings
- Watering
- Full sun
- Sunlight
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- Ideal temperature
Watering
Moderate regular watering, allowing brief slight drying between soakings
Fertilizing
FertilizingBalanced perennial feed every four weeks from spring through summer
Pruning
PruningCut back untidy foliage in spring; cutting back flowerheads may encourage repeat flowering during summer
Propagation
PropagationPropagate by division in spring
Growing
GrowingPrefers an open sunny position in well-drained soil
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Common pests and diseases
Diseases
May suffer from powdery mildews
Pests
Aphids may be a problem
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