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  2. How to Grow Sea Holly, the Striking Perennial That's Almost ...

    www.aol.com/grow-sea-holly-striking-perennial...

    Sea holly (Eryngium planum) is a tough plant, surviving in extreme cold and poor soils. It has thick, spiky leaves and steel blue or white flowers that resemble thistle plants.

  3. Eryngium - Wikipedia

    en.wikipedia.org/wiki/Eryngium

    Eryngium is a genus of flowering plants in the family Apiaceae. There are about 250 species. [1] The genus has a cosmopolitan distribution, with centres of diversity in the western Mediterranean, South America and Mexico. [2] Common names include eryngo and sea holly (though not to be confused with true hollies, of the genus Ilex).

  4. Eryngium planum - Wikipedia

    en.wikipedia.org/wiki/Eryngium_planum

    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 ...

  5. Eryngium maritimum - Wikipedia

    en.wikipedia.org/wiki/Eryngium_maritimum

    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.

  6. Sea holly varieties: 16 types of eryngium for architectural ...

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    Try these dramatic sea holly varieties for year-long displays of thistle-style flower heads and highly textural foliage

  7. Here’s the top invasive plants to look out for in your ...

    www.aol.com/top-invasive-plants-look-kentucky...

    You definitely don’t want these invasive plants, like poison hemlock, to take over. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to ...

  8. Sea holly - Wikipedia

    en.wikipedia.org/wiki/Sea_holly

    Sea holly is a common name for several plants and may refer to: Acanthus ebracteatus; Eryngium species, especially: Eryngium maritimum This page was last edited ...

  9. List of invasive species in North America - Wikipedia

    en.wikipedia.org/wiki/List_of_invasive_species...

    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 ...