Eryngium planum 'Blue Hobbit' (Sea Holly)

Noted for its petite size, Eryngium planum 'Blue Hobbit' (Sea Holly) is a compact perennial boasting a profusion of spiny, egg-shaped, purplish-blue flower heads throughout the summer. They are produced on silver-blue stems and stand high above the basal rosette of deeply toothed, smooth textured leaves.