This eye-catching perennial produces stunning thistle-like small blue flowers surrounded by a spiky bright blue collar. Also known as Sea Holly, Eryngium planum is adored by pollinators & blooms from July to September. It copes perfectly well in dry, hot & coastal conditions & is ideal for adding some texture to your sunny garden borders or as a beautiful addition to your wildlife garden. This eryngium also makes an exquisite cut flower either fresh or dried.