Product Review
Sea Holly Alpinum (Eryngium Alpinum Superbum) - Eryngium Alpinum Superbum is nothing short of fantastic when grown from flower seeds. It is one of the showiest Sea Holly plant available on the market. The metallic stems and large thistle-like flowers mature to an intense steel blue summer through fall. An elegant species for the herbaceous border, Sea Holly has a long season of interest, perfect for exciting displays and for cutting, Eryngium adds interest to the winter garden. The summer-blooming blossoms, which are actually soft-to-the-touch, harden to long-lasting cut and dried flowers. Sea Holly can withstand severe frosts and is a tough plant for full sun in well drained, light soils. Sea Holly will also grow from flower seeds in partial shade, but prefers full sun. It is a deciduous, tap-rooted perennial that dislikes root disturbances.
- TALL & VERSATILE: Our Bright Blue Eryngium grows to a height of 28 inches, adding vertical interest and making it a standout in any garden. Space plants 24 inches apart for proper growth and air circulation. Suitable for USDA Zones 4 – 9, it grows well in full sun to partial shade, offering flexible placement in various garden settings.
- LONG BLOOM SEASON & SUITED FOR CUTTING: Enjoy stunning bright blue blooms from summer to fall. These perennial flowers maintain their vibrant color even when dried, making them a great addition to floral arrangements. Soft when fresh, the blooms harden into long-lasting cut flowers, bringing texture and lasting beauty to both fresh and dried bouquets.
- WINTER INTEREST: Our Sea Holly plant continues to provide visual appeal even in winter with its spiny foliage and dried flower heads, which retain their color and structure through the colder months. As the blooms fade, they turn into textured accents that stand tall in the garden, enhancing the landscape and adding interest to your garden during the winter.
- LOW MAINTENANCE: Naturally avoided by deer, our Eryngium is well-suited for gardens where deer browsing is a concern. Once established, it requires minimal attention and offers enduring beauty with little effort. The plant’s tough, spiny leaves and flowers make it less likely to be affected by common garden issues, ensuring a low-maintenance, resilient addition to your garden.
- EASY TO PLANT: Our Eryngium grows well in well-drained soils, including sandy, loamy, or clay-rich soils, as long as the soil is not waterlogged. For healthy results, sow seeds outdoors in early spring after the last frost. Surface-sow seeds, pressing them gently into the soil. Keep the soil moist until germination, which takes about 21–28 days.
