Big Blue oliver sea holly
Eryngium olivierianum 'Big Blue'
USDA zones5 to 9
SunNeeds full sun (6+ hours)
WaterNeeds dry soil
Size2 to 3 feet tall12 to 24 inches wide
- Bloom season
- Summer
- Bloom color
- Violet blue flowers and bracts
- Soil types
- Sand, loam, chalk
- Soil pH
- Acid, alkaline, neutral
Garden uses
Attracts
Notes
'Big Blue' oliver sea holly (Eryngium olivierianum 'Big Blue') is a perennial for border plantings and low maintenance gardens. It is hardy to USDA zone 5, or down to -20°F (-29°C). This plant likes full sun and dry, sandy, loamy, or chalky soil. Deer and rabbits usually look elsewhere for a meal. Violet blue flowers and bracts appear from early to late summer. Butterflies and bees visit them.
Pairs well with Lavenite Petite lavender, Lamb’s ear, and Drumstick onion.