Eryngium maritimum (Sea Holly)
Highly ornamental, Eryngium maritimum (Sea Holly) is a semi-evergreen, clump-forming perennial with rosettes of waxy, spiny, blue-gray leaves adorned with white veins. In summer, the stiff stems boast thistle-like, blue flower heads adorned with collars of spiky bracts.
Highly ornamental, Eryngium maritimum (Sea Holly) is a semi-evergreen, clump-forming perennial with rosettes of waxy, spiny, blue-gray leaves adorned with white veins. In summer, the stiff stems boast thistle-like, blue flower heads adorned with collars of spiky bracts. Native to the sandy beaches of Europe, Sea Holly appreciates sandy and sunny conditions. Perfect for coastal areas and rock gardens.
- Grows in clumps of stiffly erect, branched stems up to 24-36 in. tall and wide (60-90 cm)
- Performs best in full sun in sand dunes or shingle. Drought tolerant.
- Excellent choice for gravel gardens and coastal gardens. May be planted as a single specimen or in groupings. Perfect for cut or dried flower arrangements too!
- Propagate by seed in fall
- Native to Europe
Requirements
| Hardiness | 5 – 10 |
|---|---|
| Plant Type | Perennials |
| Plant Family | Eryngium – Sea Hollies |
| Exposure | Full Sun |
| Season of Interest | Summer (Early,Mid,Late) |
| Height | 2' – 3' (60cm – 90cm) |
| Spread | 2' – 3' (60cm – 90cm) |
| Spacing | 36″ (90cm) |
| Water Needs | Low |
| Maintenance | Low |
| Soil Type | Sand |
| Soil pH | Alkaline, Neutral |
| Soil Drainage | Well-Drained |
| Characteristics | Dried Arrangements, Cut Flowers, Showy, Semi-Evergreen |
| Native Plants | United Kingdom |
| Tolerance | Deer, Drought, Dry Soil, Salt |
| Attracts | Bees, Birds, Butterflies |
| Garden Styles | Coastal Garden, Gravel and Rock Garden |