Babington's or Wild leek. Native to the coastline of Cornwall, The Scillies and S. Wales, this is a wild relative of the cultivated leek, Allium ampeloprasum var. porrum. Makes a striking tall bulbous perennial to 1.8m, topped by a globular head of light-purple flowers in summer. Totally edible, the bulbils produced after the flowers are delicious and garlicky.