• Alpine Sea Holly Seeds - Verdseeds
  • Alpine Sea Holly Seeds - Verdseeds
  • Alpine Sea Holly Seeds - Verdseeds
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Alpine Sea Holly Seeds

Alpine Sea Holly Seeds

$4.98 USD
$4.98 USD
Sale Sold out
style: 50 seeds

• Steel-blue thistle-like flowers with spiky bracts
• Striking perennial for borders
• Excellent fresh or dried cut flower
• Drought tolerant once established

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Description

Alpine sea holly (Eryngium alpinum) is a striking perennial featuring steel-blue, thistle-like flower heads surrounded by spiky, silvery-blue bracts. Plants have deeply lobed, spiny leaves. Reaches 1–2 feet tall. Blooms from summer to fall.

Product features

• Steel-blue thistle-like flower heads with spiky silvery-blue bracts
• Striking perennial reaches 1–2 feet tall
• Deeply lobed, spiny leaves
• Blooms from summer to fall
• Attracts bees and butterflies
• Excellent cut flower, fresh or dried
• Drought tolerant once established

Planting Season: Sow in spring after last frost, or in fall for natural stratification. Cold stratify 4–6 weeks before spring sowing.

Light Requirement: Full sun.

Seed Prep: Cold, moist stratification recommended (4–6 weeks at 34–38°F / 1–3°C).

Water Needs: Low; keep evenly moist during germination. Once established, water sparingly. Drought tolerant.

Planting Depth: ⅛–¼ inch.

Sowing Method: Direct sow in fall or start indoors after stratification.

Hardiness Zones: USDA zones 4–8.