Attractive heads provide form and interest in the border. Eryngium planum (Sea Holly) via garden.ee: This herbaceous perennial thistle has branched silvery-blue stems and and numerous small blue conical flowerheads surrounded by spiky bracts.
Sea Holly Flowers - Information About Growing Eryngium Plants
Looking for a fascinating addition to the garden? Then why not consider growing sea holly flowers. Sea hollies can provide unique interest. Read this article for information about growing Eryngium plants.
This variety easy to plant and grow from seed Sea Holly is a very fancy thistle, and it really is this blue. An easy to grow perennial, it's long been a favorite in English cutting gardens, but will grow almost anywhere. The metallic blue flowers
Sea holly (Eryngium alpinum) has a wonderful, steely-blue color, intriguing spiky foliage, and a seriously tough nature. I had to have this in my garden after seeing it in large flowerbeds in Switzerland --- really beautiful!