Shimmering Blue Perennial for Pollinator Gardens & Dry Landscapes

🌿 Plant Overview

Common Name: Sea Holly ‘Blue Glitter’
Botanical Name: Eryngium planum ‘Blue Glitter’
Plant Type: Herbaceous Perennial
Family: Apiaceae
Hardiness Zones: 5–9
Native Range: Europe and Asia (species origin)

📊 Key Characteristics

  • Height: 24–36 inches

  • Spread: 12–24 inches

  • Bloom Time: June to September

  • Flower Color: Violet-blue

  • Foliage: Green

  • Growth Habit: Compact, upright

☀️ Growing Conditions

  • Sun Exposure: Full sun

  • Water Needs: Moderate (drought tolerant once established)

  • Soil: Well-drained, sandy or loamy preferred

  • Maintenance Level: Low

Sea holly thrives in sunny, dry conditions and performs exceptionally well in sandy or poor soils where many plants struggle.

🌸 Garden Features

✔️ Unique metallic-blue flower heads
✔️ Long bloom period
✔️ Attracts butterflies and pollinators
✔️ Drought and heat tolerant
✔️ Deer and rabbit resistant
✔️ Salt tolerant
✔️ Excellent for cutting and drying

✂️ Care & Maintenance

Minimal care required. Avoid overly rich or wet soils. Deadheading can prolong bloom, though dried flower heads also add ornamental interest.

🌼 Landscape Uses

Borders, rock gardens, pollinator gardens, coastal plantings, containers, xeriscape gardens

🌿 19 Birch Lane Insight

‘Blue Glitter’ adds a striking, almost sculptural texture to the garden—perfect for creating contrast among softer plantings and adding visual interest in dry, sunny spaces.

🌱 Noteworthy Characteristics

This standout perennial produces spiky, thistle-like blue flower heads that shimmer in the sunlight. Its architectural form and drought tolerance make it a favorite for modern garden designs and pollinator-friendly landscapes. The blooms also dry beautifully, making them ideal for floral arrangements.

⚠️ Problems

No major issues. Requires excellent drainage—wet soils may lead to root problems.

Blue Glitter Sea Holly (Eryngium planum ‘Blue Glitter’)

Shimmering Blue Perennial for Pollinator Gardens & Dry Landscapes

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