Blue Star Sea Holly Seeds - Flower Plant
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Blue Star Sea Holly Seeds
Blue Star Sea Holly is a perennial ornamental flowering plant valued for its metallic blue flower heads, spiny-textured foliage, and upright growth habit. It is suitable for borders, pollinator gardens, cottage gardens, and landscape plantings where unique texture and seasonal color are desired.
Key Features
Metallic Blue Flowers
Produces distinctive blue flower heads that provide unique garden interest.
Textured Foliage
Features spiny ornamental foliage that adds structure and contrast.
Upright Growth Habit
Develops strong stems suitable for borders and mixed flower beds.
Landscape Versatility
Suitable for pollinator gardens, cottage gardens, and perennial plantings.
Product Highlights
Specifications
| Scientific Name | Eryngium planum |
| Common Name | Blue Star Sea Holly |
| Seed Type | Flower Seed |
| Growth Habit | Upright Perennial |
| USDA Zones | 4–9 |
| Planting Season | Spring, Fall |
| Growing Season | Spring Through Fall |
| Sowing Season | Spring, Fall |
| Sowing Months | March–May, September–October |
| Germination Time | 14–30 Days |
| Germination Conditions | 65–75°F (18–24°C) |
| Sunlight | Full Sun |
| Soil | Well-Drained Sandy or Loamy Soil |
| Watering | Moderate |
| Mature Size | 24–36 in Tall × 12–18 in Wide |
| Plant Spacing | 12–18 in Apart |
Growing Guide
Suitable For Borders, Pollinator Gardens And Landscape Plantings
Blue Star Sea Holly is grown for its distinctive blue flower heads and textured foliage. It is suitable for perennial borders, pollinator-friendly gardens, cottage gardens, and landscape plantings where unique color and structure are desired throughout the growing season.