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Alpine Sea Holly Seeds

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$7.99

Seeds for your next garden project, with planting guidance to help you get started.

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In stock — ships within 1 business day

Standard shipping to the USA: 4–6 business days.

Germination SupportPractical guidance when you need it
USA Garden FriendlySeeds selected for USA gardens
Secure CheckoutProtected payment experience
$7.99

Growing at a Glance

Plan your sowing with the light, space and growing conditions this flower needs.

Plant Height 1-2 ftVariety-specific habit
Light Requirement Full Sun
Planting Season FallFollow local frost dates
USDA Zone Zone 4~9Selected for USA gardens
Germination 7-21 DaysKeep evenly moist
Days to Maturity 70-120 DaysVariety dependent
Plant Spacing 8-18 inAllow healthy airflow
Growing Difficulty ModerateGrowing support available

Flower Performance

Picture this variety in your garden, from its flower colors to when it blooms.

Flower Color Blue, Purple
Bloom Period Late Spring, Summer, Fall
Life Cycle PerennialAnnual, biennial or perennial
Garden Use Borders, Beds, Cut Flowers, Pollinator GardensBest-fit garden settings
Shipping & Returns

Simple delivery. Clear support.

Shipping

Most orders ship within 24 hours of payment confirmation, excluding weekends and U.S. federal holidays. Standard transit takes 4–6 business days.

Returns & order issues

Customers may return seed products within 30 calendar days of delivery, including unopened, opened or used items. We cover return shipping for quality issues, shipping errors or transit damage.

Seeds are living products. If you have germination questions, our team provides practical growing guidance to help you troubleshoot.

About this seed

Why gardeners choose this variety

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.

Key features

What makes it stand out

  • Spiky flower heads bring a sculptural texture.
  • Firm stems contrast with softer border flowers.
Perfect for

Best garden uses

  • Gravel gardens
  • Sunny borders
  • Dried-flower plots
Growing tips

A stronger start

  • Check whether this seed lot needs a period of moist chilling before sowing.
  • Use a free-draining seed mix and keep it moist without saturation.
  • Allow time for uneven emergence; do not discard the tray too soon.
  • Grow seedlings on until well rooted, then acclimatize them before planting out.
  • 5 stars: 2 (67%)
  • 4 stars: 1 (33%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
K
Katniss

This is my first time trying this variety. I’ve started with just a few seeds to see how they do before planting the rest.

D
David Mitchell
Great for poor soil and sunny areas

I have poor, sandy soil in my garden, these sea hollies thrive there! They love full sun, require very little water, and the blue flowers are stunning. They also make great cut flowers for dried arrangements.

S
Samantha Ross
Stunning blue sea holly blooms

These alpine sea holly seeds grew into beautiful plants with unique blue, thistle-like flowers that look like they’re made of metal. They bloom in mid-summer, are drought tolerant, and add a unique texture to the garden.

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