Eryngium Species, Sea Holly
Eryngiummaritimum

Family: Apiaceae (ay-pee-AY-see-ee)
Genus: Eryngium (er-RIN-jee-um)
Species: maritimum (muh-RIT-tim-mum)

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

Sun Exposure
Full Sun

Foliage
Grown for foliage
Evergreen

Foliage Color
Bronze
Blue-Green

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)

Where to Grow

Danger
Plant has spines or sharp edges; use extreme caution when handling

Bloom Color
Blue-Violet
Silver/Gray

Bloom Characteristics
Flowers are good for cutting
Flowers are good for drying and preserving

Bloom Size

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

Soil pH requirements

Patent Information
Non-patented

Propagation Methods

Seed Collecting