Eryngium Species, Sea Holly

Eryngiummaritimum

Family
Apiaceae (ay-pee-AY-see-ee)
Genus
Eryngium (er-RIN-jee-um)
Species
maritimum (muh-RIT-tim-mum)
Synonym
Sun Exposure
Full Sun
Foliage
Grown for foliage
Evergreen
Height
24-36 in. (60-90 cm)
Spacing
24-36 in. (60-90 cm)
Hardiness
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)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
Danger
Plant has spines or sharp edges; use extreme caution when handling
Bloom Color
Blue-Violet
Silver/Gray
Bloom Time
Late Winter/Early Spring
Mid Spring
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Mid Fall
Late Fall/Early Winter
Blooms repeatedly
Other Details
Category
Perennials
Water Requirements
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings
Foliage Color
Bronze
Blue-Green
Where to Grow
Bloom Characteristics
Flowers are good for cutting
Flowers are good for drying and preserving
Bloom Size
Other details
Soil pH requirements
Patent Information
Non-patented
Propagation Methods
Seed Collecting
Regional

This plant is said to grow outdoors in the following regions:

Clayton, California

Nevada City, California

Elba, New York

Hamilton, Ohio

Monmouth, Oregon

Fircrest, Washington

Tacoma, Washington

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Gardener's Notes:

1
positive
0
neutral
0
negative
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H
Northern California, CA | August 2003 | positive

Formerly common around the British coast, now rare in Scotland and apparently extinct on the east coast, becoming more local elsewhere. A...Read More

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