Bulb-forming perennial plant of the genus Scilla, family Liliaceae, found growing in dry places near the sea in W Europe. Cultivated species usually bear blue flowers either singly or in clusters at the top of the stem. The Spring squill Scilla verna has narrow grasslike leaves, sometimes curled; violet-blue six-petalled flowers appear in early summer, two to 12 on a dense spike. The autumn squill Scilla autumnalis is somewhat similar, but flowers in autumn before the emergence of leaves.