any of a genus (Iberis) of garden plants of the crucifer family, with clusters of white, pink, or purplish flowers
See candytuft in American Heritage Dictionary 4
(kănˈdē-tŭftˌ)
noun
Any of several plants of the genus Iberis in the mustard family, native to Europe and the Mediterranean region and widely cultivated for their showy clusters of white, pink, crimson, or purple flowers.