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Product Description
Add striking texture and color to your garden with Blue Eryngium, a hardy and easy-to-grow flower known for its unique blue blooms. These heirloom, GMO-free seeds are perfect for borders, containers, and mixed flower beds, offering a bold and low-maintenance floral display for home gardeners.
Features & Benefits:
Easy to Grow: Suitable for both beginner and experienced gardeners.
Unique Blue Blooms: Adds texture and vibrant color to any garden space.
Heirloom & GMO-Free: Open-pollinated seeds preserving traditional traits.
Versatile Growth: Ideal for borders, containers, rock gardens, and patios.
Planting Instructions:
Sowing: Start seeds indoors 6–8 weeks before the last frost, or sow directly outdoors in well-draining soil.
Sunlight: Prefers full sun for optimal growth and flowering.
Watering: Keep soil evenly moist but avoid waterlogging.
Germination: Seeds typically sprout in 10–14 days.
Transplanting: Transplant seedlings outdoors once strong and after frost risk has passed.

Life Cycle
Perennial Flower
Planting Season
Cool Season
Growth Habit
Upright Clumping
Flavor Profile
Non Edible
Plant Characteristics
Metallic Blue Blooms
Use
Garden Borders
Growing Conditions
Dry Sunny
Harvest Advantages
Easy Growing
Plant Resistance
Drought Tolerant
Scientific Name: Eryngium planum
Seed Names
Eryngium Seeds
Seed Type
Heirloom Open-Pollinated
Blue Eryngium, commonly known as Sea Holly, is a striking ornamental plant admired for its metallic blue flower heads and spiky foliage. The plant thrives in sunny gardens and well-drained soil, producing long-lasting blooms that add texture and color to landscapes. Its hardy nature and unique appearance make it a favorite for borders, cottage gardens, and dried flower arrangements.
Light Requirement
Full Sun
Planting Depth
¼ Inch Deep
Sowing Method
Direct / Indoor
Plant Spacing
12–18 Inches
Days to Maturity
90–110 Days
Soil Preparation
Cold Stratification
Hardiness Zones
4–9 Zones
Water Needs
Low Water
Planting Season
Spring, Fall
Seed Count
Recommended Coverage
100
Up to 70 sq ft
500
Up to 350 sq ft
1000
Up to 700 sq ft