Eryngium alpinum

Eryngium alpinum
sea holly
sea holly
SIZE/TYPE | mid-sized perennial |
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USUAL HEIGHT | 0.5-0.8m |
USUAL WIDTH | 0.3-0.5m |
LEAVES | deciduous broadleaf |
COLOUR OF LEAVES |
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FLOWERS | showy |
COLOUR OF FLOWERS |
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BLOOMING TIME | July - August |
LOCATION | full sun |
USDA zone (lowest) | 5 (down to -29°C) |
WINTER PROTECTION | |
FOR ZONE 5+6 |
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FOR ZONE 7 |
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BELONGS TO CATEGORIES |
Perennials Summer blooms |
Sea holly is a dramatic plant for lovers of unusually shaped perennials. It comes from Alps and Balkans and in most countries of its native origin is protected and listed as endangered species.
The flowers are steel-blue or blue-violet, thistle-like with pin-cushion heads. Main basal leaves are ovate to heart-shaped, spiny-toothed, mid green. Stem leaves are 3-lobed, deeply cut. Sea holly is often used as a cut flower in arrangements, fresh or dried.
It likes poor, very well-drained soil, it will die in too moist or damp sites. Fully hardy to -29°C.
Last update 12-01-2009.
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