Sea Holly Seeds – Eryngium planum Flower Planting Seeds
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Estimated Delivery Nov 02 – Nov 06Handling 2–3 daysTransit 6–8 daysTotal 8–11 days
Business days, Monday to Friday.
- Order by 5:00 PM GMT to ship the same business day
- No dispatch on weekends or UK public holidays
Sea Holly Seeds – Eryngium planum Flower Planting Seeds
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Growing Tips & Guides
Product Description
Sea Holly (Eryngium planum) is a distinctive perennial flowering plant known for its steel-blue flower heads, spiky bracts, and upright stems. Its unique appearance adds color and texture to sunny garden borders, gravel gardens, cottage gardens, and naturalistic landscapes.
This ornamental plant grows best in full sun and well-drained soil. Water young plants regularly while they establish, then avoid excessive watering. Sea Holly pairs well with ornamental grasses and other sun-loving perennials, and its distinctive blooms can also be used in fresh or dried floral arrangements.
- Common Name: Sea Holly, Blue Sea Holly
- Botanical Name: Eryngium planum
- Plant Type: Perennial flowering plant
- Flower Color: Steel-blue to blue
- Foliage: Green to silvery-green
- Sunlight: Full sun
- Soil: Well-draining soil
- Garden Uses: Borders, gravel gardens, pollinator-friendly spaces, and floral arrangements
- Sow seeds in a suitable seed-starting medium according to the supplier’s instructions.
- Keep the soil lightly moist while seeds establish, avoiding waterlogged conditions.
- Allow time for germination, as results may vary.
- Transplant seedlings carefully once they are established.
- Choose a sunny planting location with well-drained soil.
- Water as needed, taking care not to keep the soil consistently wet.
Description
Product Description
Sea Holly (Eryngium planum) is a distinctive perennial flowering plant known for its steel-blue flower heads, spiky bracts, and upright stems. Its unique appearance adds color and texture to sunny garden borders, gravel gardens, cottage gardens, and naturalistic landscapes.
This ornamental plant grows best in full sun and well-drained soil. Water young plants regularly while they establish, then avoid excessive watering. Sea Holly pairs well with ornamental grasses and other sun-loving perennials, and its distinctive blooms can also be used in fresh or dried floral arrangements.
Plant Characteristics
- Common Name: Sea Holly, Blue Sea Holly
- Botanical Name: Eryngium planum
- Plant Type: Perennial flowering plant
- Flower Color: Steel-blue to blue
- Foliage: Green to silvery-green
- Sunlight: Full sun
- Soil: Well-draining soil
- Garden Uses: Borders, gravel gardens, pollinator-friendly spaces, and floral arrangements
Growing Instructions
- Sow seeds in a suitable seed-starting medium according to the supplier’s instructions.
- Keep the soil lightly moist while seeds establish, avoiding waterlogged conditions.
- Allow time for germination, as results may vary.
- Transplant seedlings carefully once they are established.
- Choose a sunny planting location with well-drained soil.
- Water as needed, taking care not to keep the soil consistently wet.
Plant care
How to plant your seeds
Follow these simple steps to give your seeds the best start.
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Prepare your soil & tray
Fill trays or small pots with seed-starting mix. Press gently to settle—no need to pack tight.
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Sow seeds at the right depth
Plant roughly 2–3× the seed’s width deep. Tiny seeds can be pressed lightly into the surface.
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Water & keep warm
Mist or bottom-water. Cover until sprouting if the packet suggests it. Keep in a bright, warm spot.
