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Sea Holly 'Blue Glitter'

Eryngium planum

Family: Apiaceae (ay-pee-AY-see-ee) (Info)
Genus: Eryngium (er-RIN-jee-um) (Info)
Species: planum (PLAN-um) (Info)
Cultivar: Blue Glitter



Foliage Color:


Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


36-48 in. (90-120 cm)


18-24 in. (45-60 cm)


USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

Sun Exposure:

Full Sun


Unknown - Tell us

Bloom Color:


Bloom Time:

Mid Summer

Late Summer/Early Fall


Grown for foliage

Other details:

Unknown - Tell us

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

7.9 to 8.5 (alkaline)

8.6 to 9.0 (strongly alkaline)

Patent Information:

Unknown - Tell us

Propagation Methods:

By dividing the rootball

From herbaceous stem cuttings

From woody stem cuttings

From softwood cuttings

From semi-hardwood cuttings

From seed; direct sow outdoors in fall

From seed; winter sow in vented containers, coldframe or unheated greenhouse

From seed; stratify if sowing indoors

Seed Collecting:

Allow pods to dry on plant; break open to collect seeds

Allow seedheads to dry on plants; remove and collect seeds

Properly cleaned, seed can be successfully stored


This plant has been said to grow in the following regions:

Lindenwood, Illinois

Barbourville, Kentucky

Elizabeth City, North Carolina

Warren, Ohio

Sherwood, Oregon

Erie, Pennsylvania

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Gardeners' Notes:

No details have been posted.