candytuft
noun
can·dy·tuft ˈkan-dē-ˌtəft 
: any of a genus (Iberis) of plants of the mustard family cultivated for their white, pink, or purple flowers
Example Sentences
Recent Examples on the Web Transplant or direct-seed several flowers, including snapdragon, candytuft, lilies, astilbe, larkspur, Shasta and painted daisies, stocks, bleeding heart and coral bells. 
Debbie Arrington, sacbee, 23 Feb. 2018 Flower seeds to sow now (the sooner the better): Alyssum, candytuft, forget-me-not, poppies, larkspur and cornflower. NOLA.com, 6 Jan. 2018
Debbie Arrington, sacbee, 23 Feb. 2018 Flower seeds to sow now (the sooner the better): Alyssum, candytuft, forget-me-not, poppies, larkspur and cornflower. NOLA.com, 6 Jan. 2018 Word History
Etymology
Candy, alteration of Candia Crete, Greek island + English tuft
First Known Use
1629, in the meaning defined above