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Create your own plant list and get plant care reminders direct to your inbox!
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Beginner
skill rating |
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0.5m
max. spread |
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1m
max. height |
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2-5 years
to maturity |
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1 hour care
per year |
Botanical name: Eryngium alpinum
Other names: Alpine eryngo, Alpine sea holly
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Genus: Eryngium
Species: E. alpinum - E. alpinum is an erect herbaceous perennial with heart-shaped, glossy dark green leaves. Large, cone-like, purplish flowers surrounded by vivid blue, spiny bracts, borne on blue stems.
Eryngium alpinum is: Deciduous
Flower: Blue, Purple in Summer; Purple, Blue in Autumn
Foliage: Dark-green in Summer
Stem: Blue in Summer
Habit: Clump-forming
Awards: RHS AGM (Award of Garden Merit)
Plant with:
Anthemis tinctoria 'E.C. Buxton' (Dyer's chamomile 'E.C. Buxton'), Campanula latifolia (Giant bellflower), Origanum rotundifolium (Round-leaved oregano)
Eryngium alpinum (Alpine eryngo) will reach a height of 1m and a spread of 0.5m after 2-5 years.
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Suggested uses: Coastal, Cottage/Informal, Flower Arranging, Beds and borders, Gravel, Wildlife
Cultivation: Plant in dry, well-drained soil that is poor or moderately fertile. Full sun is essential. Protection from any winter wet.
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| Soil types: |
Chalky, Loamy, Sandy |
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| Soil drainage: |
Well-drained |
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| Soil pH: |
Acid, Alkaline, Neutral |
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| Light: |
Full Sun |
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| Aspect: |
South, East, West |
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| Exposure: |
Exposed |
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| Hardiness: |
Hardy (H4) |
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