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| Beginner skill rating |
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| 0.6m max. spread |
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| 0.6m max. height |
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| 2-5 years to maturity |
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| 1 hour care per year |
Botanical name: Allium cristophii
Other names: Star of persia, Allium cristophii (syn. albopilosum), Allium christophii
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Genus: Allium
Species: A. cristophii - A. cristophii is a bulbous perennial, with strap-shaped, grey-green leaves. Star-shaped, rosy-violet flowers are borne in spherical heads in early summer which are followed by attractive seed-heads.
Allium cristophii is: Deciduous
Flower: Purple in Summer
Foliage: Grey-green in Summer
Habit: Erect
Awards: RHS AGM (Award of Garden Merit)
Plant with: Alchemilla mollis (Lady's mantle), Acanthus mollis (Bear's breeches), Achillea x lewisii 'King Edward' (Yarrow 'King Edward'), Acanthus mollis 'Hollard's Gold' (Bear's breeches 'Hollard's Gold'), Alchemilla epipsila (Dwarf lady's mantle), Stachys byzantina 'Big Ears' (Woolly betony 'Big Ears')
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Pests: Pest free, may suffer from slugs on new growth.
Specific pests: Slugs , Onion fly
Specific diseases: Onion rot , Downy mildew
Propagation methods: Seed, Offsets. REGISTER to read more...
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Allium cristophii (Star of persia) will reach a height of 0.6m and a spread of 0.6m after 2-5 years.
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Suggested uses: Architectural, Cottage/Informal, Flower Arranging, Beds and borders, Gravel
Cultivation: Grow in fertile, but well-drained soil. Add grit to heavy soils to improve drainage.
| This plant likes... | Garden match | |
| Soil types: | Chalky, Clay, Loamy, Sandy (will tolerate most soil types) | |
| Soil drainage: | Moist but well-drained, Well-drained | |
| Soil pH: | Acid, Alkaline, Neutral | |
| Light: | Full Sun | |
| Aspect: | North, South, East, West | |
| Exposure: | Sheltered | |
| Hardiness: | Tender in frost (H3), Hardy (H4) | |
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Comment from
The onion family is a large one, with almost 300 species growing wild in the northern hemisphere. This species produces one of the most dramatic flowers of the family. It is an important nectar source and has the added advantages of being hardy and drought tolerant.
"As a complete novice with gardening, Shoot has been more help than I ever could of expected. "
John, County Durham
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