What is eryngium planum?

Eryngium planum, commonly known as blue eryngo or flat sea holly, is a herbaceous perennial plant native to Europe and Asia. It belongs to the Apiaceae family and is closely related to the more well-known sea holly species, Eryngium maritimum.

Blue eryngo typically grows to a height of 60-90 cm and produces spiky, silver-blue or blue-green foliage. The plant also bears distinctive blue, cone-shaped flower heads that are surrounded by spiky bracts. These flowers bloom in the summer months and are highly attractive to pollinators such as bees and butterflies.

In terms of cultivation, Eryngium planum prefers well-drained soil and full sun exposure. It is drought-tolerant once established and can thrive in various soil types, including sandy or rocky soils. Blue eryngo is often grown in perennial borders, rock gardens, or naturalized areas, where its unique appearance can add texture and color to the landscape.

Blue eryngo is also commonly used in dried flower arrangements due to its long-lasting flowers and attractive seed heads. Additionally, both the flowers and foliage of Eryngium planum are known for their medicinal properties, including anti-inflammatory and diuretic effects.

Overall, Eryngium planum is a striking and versatile plant that can be a valuable addition to a garden or landscape.