grape hyacinth

noun
1.
any plant belonging to the genus Muscari, of the lily family, as M. botryoides, having globular, blue flowers resembling tiny grapes.
Origin
1725-35
British Dictionary definitions for grape hyacinth

grape hyacinth

noun
1.
any of various Eurasian liliaceous plants of the genus Muscari, esp M. botryoides, with clusters of rounded blue flowers resembling tiny grapes