Sea Holly – Definition & Detailed Explanation – Flower Glossary

I. What is Sea Holly?

Sea Holly, also known as Eryngium, is a genus of flowering plants in the family Apiaceae. These unique plants are native to coastal areas and grasslands in Europe, Asia, and the Americas. Sea Holly plants are known for their spiky, metallic blue or silver flowers that resemble thistles. They are drought-tolerant and deer-resistant, making them a popular choice for gardens and landscapes.

II. What are the different varieties of Sea Holly?

There are several different varieties of Sea Holly, each with its own unique characteristics. Some popular varieties include Eryngium planum, Eryngium alpinum, and Eryngium giganteum. Eryngium planum, also known as Blue Sea Holly, has striking blue flowers and spiky leaves. Eryngium alpinum, or Alpine Sea Holly, has smaller, more compact flowers and a more delicate appearance. Eryngium giganteum, or Miss Willmott’s Ghost, is a larger variety with silver-blue flowers that can reach up to 3 feet in height.

III. What are the characteristics of Sea Holly flowers?

Sea Holly flowers are known for their unique appearance and striking color. The flowers are typically small and globe-shaped, with a metallic blue or silver hue. They have a spiky, thistle-like appearance and are often used in floral arrangements for their texture and color. Sea Holly flowers are long-lasting and can be dried for use in dried flower arrangements.

IV. How to care for Sea Holly plants?

Sea Holly plants are relatively low-maintenance and easy to care for. They prefer full sun and well-drained soil, making them ideal for coastal gardens and xeriscapes. Sea Holly plants are drought-tolerant once established and do not require frequent watering. They are also deer-resistant, making them a great choice for gardens where deer are a problem. To promote healthy growth, it is recommended to deadhead spent flowers and divide clumps every few years.

V. What are the uses of Sea Holly in floral arrangements?

Sea Holly flowers are popular choices for floral arrangements due to their unique appearance and long-lasting qualities. The spiky texture and metallic color of Sea Holly flowers add interest and depth to bouquets and centerpieces. They are often used as filler flowers in arrangements to add a touch of whimsy and texture. Sea Holly flowers can also be dried and used in dried flower arrangements, wreaths, and crafts.

VI. How to propagate Sea Holly plants?

Sea Holly plants can be propagated through division or by collecting and sowing seeds. To propagate Sea Holly through division, simply dig up a clump of the plant and carefully separate the roots into smaller sections. Replant the divisions in well-drained soil and water thoroughly. To propagate Sea Holly from seeds, collect the seeds from the dried flower heads and sow them in a seed-starting mix. Keep the soil moist and warm until the seeds germinate, then transplant the seedlings into individual pots or directly into the garden. With proper care and attention, Sea Holly plants will thrive and provide years of beauty in the garden.