blue eryngo
Eryngium planum
RHS Plants for Pollinators
USDA zones5 to 9
SunNeeds full sun (6+ hours)
WaterHandles dry to moderate soil
Size2 to 3 feet tall12 to 24 inches wide
- Habit
- Clumping
- Bloom season
- Summer, autumn
- Bloom color
- Steel blue
- Foliage color
- Green
- Soil types
- Sand, loam
Garden uses
Attracts
Notes
Blue eryngo (Eryngium planum) is a perennial for borders, cut flowers, pollinator gardens, and rock gardens. It is hardy to USDA zone 5, or down to -20°F (-29°C). This plant likes full sun and dry to average, sandy or loamy soil. Steel blue flowers open from early to late summer and again in early autumn, and bees and butterflies visit them. Deer and rabbits rarely make it their first choice. Protect the clump from winter wet.
Pairs well with Silver sage, Feather reed grass, Creeping thyme, and Blue grama.
Native range
Europe, Central Asia, Asia, Altay, and 3 more places. See all 7
Europe, Central Asia, Asia, Altay, Krym, NW. Balkan Pen., and Xinjiang.