Eryngium planum ‘Blue Glitter’
Overview
Uses: Sunny perennial borders, pollinator gardens, coastal plantings, cut flower gardens, dried floral arrangements.
Benefits: Steel-blue, thistle-like bracts provide bold summer color, excellent drought tolerance, and long-lasting blooms ideal for fresh or dried arrangements.
USDA Hardiness Zones: 4–8
Sun: Full Sun
Life Cycle: Hardy Perennial
Growth Habit: Upright, Clumping — branching stems topped with spiny bracts.
Bloom Color: Blue
Foliage Color: Green with Gray undertones
Mature Height: 24–36"
Mature Width: 12–18"
Bloom Season: Summer to Early Fall
Growth Rate: Moderate
Summary
Architectural texture and vivid blue color define ‘Blue Glitter’ Sea Holly.
This compact selection of Eryngium planum produces striking, metallic-blue bracts that rise above sturdy, branching stems from summer into early fall. The spiny, sculptural flowers add contrast to softer perennials and shine in fresh arrangements or dried bouquets.
Well suited to hot, sunny locations, ‘Blue Glitter’ thrives in lean, well-drained soils and tolerates drought once established. Its bold texture and color make it a standout in contemporary borders, coastal gardens, and pollinator-friendly landscapes.
Care
Blue Glitter Sea Holly Care
Plant in full sun for best color and sturdy stems.
Provide well-drained soil. This plant prefers lean conditions and does not require rich soil. Avoid heavy, poorly drained clay.
Water regularly during establishment. Once established, allow soil to dry slightly between waterings and irrigate during extended drought.
If fertilization is needed, apply a slow release fertilizer in early spring.
In windy areas, taller stems may benefit from discreet staking. Cut back spent stems in late fall or early spring.
Size
What Size is the Blue Glitter Sea Holly for Sale Online?
Our Eryngium planum ‘Blue Glitter’ ships in a greenhouse-grade grow pot and is appropriately sized for its container and the current growing season. Please contact us with any specific size questions before ordering.
How Large Does Blue Glitter Sea Holly Grow?
At maturity, ‘Blue Glitter’ typically reaches 24–36" tall and 12–18" wide, forming a vertical, airy clump that blends easily with other sun-loving perennials.
Additional Information
What are some common names for this plant?
- Blue Glitter Sea Holly
- Sea Holly
Is Blue Glitter Sea Holly good for pollinators?
Yes. The nectar-rich blooms attract bees and butterflies throughout the summer, making it a strong addition to sunny pollinator gardens. Browse more options in our Perennials collection.
Is this plant drought tolerant?
Once established, ‘Blue Glitter’ handles dry conditions well and thrives in well-drained soils. Explore additional resilient selections in our Drought-Tolerant Plants collection.
Can the flowers be dried?
Yes. The bracts retain their distinctive blue color when dried, making them popular for long-lasting arrangements and decorative use.
