Eryngium alpinum
Plant Expert:
Allan Armitage Eryngium alpinum
Allan Armitage
Eryngium alpinum
Eryngium alpinum (click for large image)
Alpine Sea Holly
Common Names:
  • Alpine Sea Holly
More Images:
Alpine Sea Holly
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Origin:

  Europe  

Sun/Water Requirements:

  Partial/Full sun.

Armitage says: "Plant in full sun and well-drained soil."

Climate / Hardiness Zones:

  Zone 4 to Zone 7

Growth:

  Range: Grows to 2'.

Flowers:

  Color(s): Blue, White
Season(s): Summer

Armitage says: "The flower head is oblong like a pineapple and one of the bluest of the sea hollies.Twelve to 18 finely divided, rather soft involucre bracts prominently extend from the flower head and give this species its marvelous ornamental value.The flower and associated involucre look like exploding fireworks.The involucre of immature flowers are almost white, then become bluer with age.For flower power, this is the best species.It is a popular cut flower and lasts for at least 2 weeks in water."  

Foliage:

  Armitage says: "The slightly toothed basal leaves are heart shaped while the upper leaves are 3-lobed or palmately divided."  

Landscape Value:

  Can be used as an ornamental plant.

Armitage says: "Twelve to 18 finely divided, rather soft involucre bracts prominently extend from the flower head and give this species its marvelous ornamental value."
Eryngium alpinum is hardy in these areas:
Allegan, MIAlsip, ILAthens, MI
Augusta, MIBaltimore, MDBangor, MI
Battle Creek, MIBayside, NYBellmore, NY
Bellport, NYBethpage, NYBlue Point, NY
Bohemia, NYBrentwood, NYBrightwaters, NY
Bronxville, NYBrookhaven, NYCanton, MI
Channahon, ILCharlottesville, VAChicago Heights, IL
Chicago Ridge, ILChicago, ILCicero, IL
Cleveland, OHCoal City, ILCollege Point, NY
Conneaut, OHCorona, NYCrete, IL
Detroit, MIDewitt, MIDimondale, MI
Dolton, ILDorset, OHEagle, MI
East Claridon, OHEast Elmhurst, NYEast Greenville, PA
East Lansing, MIEast Texas, PAEastchester, NY
Easton, PAEaton Rapids, MIEcorse, MI
Edmore, MIElkins Park, PAElmhurst, NY
Elmwood Park, ILElyria, OHEmmaus, PA
Evergreen Park, ILFerndale, MIFlushing, NY
Forest Hills, NYFort Eustis, VAFresh Meadows, NY
Glen Burnie, MDGrand Rapids, MIGreenlawn, NY
Gwynn Oak, MDHamtramck, MIHarper Woods, MI
Harrison Township, MIHastings On hudson, NYHighland Park, MI
Holbrook, NYHoltsville, NYHunt Valley, MD
Huntington Station, NYHuntington, NYIslandia, NY
Jackson Heights, NYKalamazoo, MILakewood, OH
Landisburg, PALawn, PALeasburg, NC
Lebanon, PALemoyne, PALewistown, PA
Lexington, NCLiberty, NCLinwood, NC
Little Neck, NYLittleton, COLiverpool, PA
Loysville, PALykens, PAMacomb, MI
Marysville, MIMaspeth, NYMcalisterville, PA
Melville, NYMemphis, MIMemphis, TN
Mentor, OHMiddle Village, NYMiddlefield, OH
Montville, OH
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