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Sea holly grows in a tall, clumping format, maxing out around 2 to 3 feet tall and 1 to 2 feet wide in its second season. It can live for decades in the right conditions. Even better?
Common names include eryngo and sea holly (though not to be confused with true hollies, of the genus Ilex). These are annual and perennial herbs with hairless and usually spiny leaves . The dome-shaped umbels of steely blue or white flowers have whorls of spiny basal bracts .
Eryngium planum, the blue eryngo [1] or flat sea holly, is a species of flowering plant in the family Apiaceae, native to the area that includes central and southeastern Europe and central Asia. It is an herbaceous perennial thistle growing to 50 cm (20 in) with branched silvery-blue stems, and numerous small blue conical flowerheads surrounded ...
Eryngium maritimum, the sea holly or sea eryngo, or sea eryngium, is a perennial species of flowering plant in the family Apiaceae and native to most European coastlines. It resembles a thistle in appearance because of its burr-shaped inflorescences. Despite its common name, it is not a true holly but an umbellifer.
Try these dramatic sea holly varieties for year-long displays of thistle-style flower heads and highly textural foliage
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This is a list of invasive species in North America.A species is regarded as invasive if it has been introduced by human action to a location, area, or region where it did not previously occur naturally (i.e., is not a native species), becomes capable of establishing a breeding population in the new location without further intervention by humans, and becomes a pest in the new location ...
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