Eryngium

Common name: Grumpy Ornamental thistle. Silver-blue flowers in summer. Loved by flower arrangers. Sunny open aspect. Average height: 2ft Full sun.

Common name: Sea Holly A beautiful ornamental thistle with vibrant deep blue flowers carried on sturdy, dark blue stems in summer.  Loved by bees and flower arrangers! Great for dried flower arrangements too. Average height 3ft. Full sun. Hardy.  

Common name: Sea Holly A beautiful ornamental which bears particularly large, striking metallic-blue flowers throughout summer and into autumn. Average height 2.5ft Full sun Hardy   "Loved by flower arrangers and most useful for winter drying. Great for...