Eryngium 'Sapphire Blue'

sea holly

Deciduous, Herbaceous Perennial

Showy, star-shaped, steel-blue blooms appear mid to late summer. In bloom, they're a magnet for bees. If left in place, the dried bracts are attractive as dried seed heads and are appreciated by the birds in later summer, into fall. Drought tolerant and okay with poor un-amended soil.

Growing Conditions

Zone: 5, 6, 7, 8, 9

Exposure: Full Sun, Afternoon Sun, Reflected Heat

Water Needs: Drought-tolerant, Low


Size: 24 - 36 tall x 24 - 30 wide
Shape / Form: Clumping
Foliage Texture: Coarse, Medium
Foliage Quality: Coarse, Medium

Features: Attracts Bees, Drought-tolerant / Water wise, Attractive Foliage, Flowers, Long Blooming, Low Maintenance

Foliage Color: Silver / Gray, Green

Flower Color: Blue
Bloom Season: Jul, Aug, Summer, Fall
Flower Shape: Rose / Rosette

Uses and Applications

Landscape Uses: Beds and Borders, Cutting Garden, Hell Strip, Mixed Border
Special Situations: Deer Resistant, Low Water / No Water
Wildlife: Bees

More Design Considerations

Season of Interest: Summer, Late Spring / Early Summer, Late Summer / Early Fall
Collections: eGardenGo Favorite, Plants That Earn Their Keep

Care and Maintenance

Maintenance Level: medium

Plant Combos