Alpine Seaholly
What: Alpine Sea Holly (Eryngium alpinum) is a highly ornamental, drought-tolerant perennial featuring striking steel-blue cone-shaped flowers surrounded by deeply toothed, silvery-blue leaves on vibrant navy stems.
Best use: It is ideal for full-sun rock gardens, borders, or mass plantings, and it serves as a spectacular “thriller” in outdoor container arrangements or fresh and dried floral displays.
Plant Details
| Height | 32 inches |
| Spread | 15 inches |
| Hardiness Zone | 2b |
| Sunlight | Full sun |
| Bloom Time | Early to mid summer |
| Flower Color | steel blue cone-shaped flowers |
| Watering | Dry to average moisture |
| Growth Rate | Fast |
| Maintenance | best cleaned up in early spring before it resumes active growth |
| Uses | Specimen, Mass Planting, Borders, Dried Flowers |
