Button Snakeroot,  Rattlesnake master, Button eryngo

This perennial eryngium has long, slightly spiky glaucous leaves, from which tall stems of silvery-white button thistles emerge.  Wildlife friendly.  Good for cut flowers.  Evergreen.  Ht approx 120cms when in flower, giving good accent planting in a modern themed garden border.  Spread approx 90cms.