Alpine Sea Holly 'Blue Star', Alpine Eryngo 'Blue Star'
Eryngium alpinum ‘Blue Star’ (Alpine Sea Holly) is an erect, herbaceous perennial with basal rosettes of heart-shaped, deeply toothed, glossy leaves. From mid-summer to early fall, sturdy leafy stems, tinged with gray blue, bear cone-shaped, thistle-like, silver-blue flower heads. Each flower head is surrounded by intricately cut, feather-like, soft bracts. Attractive to bees and butterflies but deer resistant, this is a versatile plant, fitting well into the sunny border.
| Hardiness |
2 - 8 |
|---|---|
| Heat Zones |
6 - 9 |
| Climate Zones | 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 |
| Plant Type | Perennials |
| Plant Family | Apiaceae |
| Genus | Eryngium |
| Common names | Sea Holly |
| Exposure | Full Sun |
| Season of Interest |
Summer (Mid, Late) Fall |
| Height |
2' - 3' (60cm - 90cm) |
| Spread |
1' - 2' (30cm - 60cm) |
| Spacing | 24" (60cm) |
| Maintenance | Low |
| Water Needs | Low |
| Soil Type | Chalk, Loam, Sand |
| Soil pH | Acid, Alkaline, Neutral |
| Soil Drainage | Well-Drained |
| Characteristics | Dried Arrangements, Cut Flowers, Showy |
| Tolerance | Drought, Deer, Salt, Dry Soil |
| Attracts | Bees, Birds, Butterflies |
| Garden Uses | Beds And Borders |
| Garden Styles | Gravel and Rock Garden, Prairie and Meadow, Coastal Garden, Informal and Cottage |
| Hardiness |
2 - 8 |
|---|---|
| Heat Zones |
6 - 9 |
| Climate Zones | 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 |
| Plant Type | Perennials |
| Plant Family | Apiaceae |
| Genus | Eryngium |
| Common names | Sea Holly |
| Exposure | Full Sun |
| Season of Interest |
Summer (Mid, Late) Fall |
| Height |
2' - 3' (60cm - 90cm) |
| Spread |
1' - 2' (30cm - 60cm) |
| Spacing | 24" (60cm) |
| Maintenance | Low |
| Water Needs | Low |
| Soil Type | Chalk, Loam, Sand |
| Soil pH | Acid, Alkaline, Neutral |
| Soil Drainage | Well-Drained |
| Characteristics | Dried Arrangements, Cut Flowers, Showy |
| Tolerance | Drought, Deer, Salt, Dry Soil |
| Attracts | Bees, Birds, Butterflies |
| Garden Uses | Beds And Borders |
| Garden Styles | Gravel and Rock Garden, Prairie and Meadow, Coastal Garden, Informal and Cottage |
How many Eryngium alpinum ‘Blue Star’ (Alpine Sea Holly) do I need for my garden?
| Plant | Quantity | |
|---|---|---|
| Eryngium alpinum ‘Blue Star’ (Alpine Sea Holly) | N/A | Buy Plants |
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Create a membership account to save your garden designs and to view them on any device.
Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas.
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