Iberis

"Candytuft, candyedge, or candyturf, as it was sometimes called, was first found growing on the shore of the Mediterranean Sea. The name candy is from Candia, the ancient name of Crete.
The genus name, Iberis, is from the Roman name for ancient Spain, Iberia. Many species of Iberis are native to Spain.
A member of the mustard family, candytuft was often called candy mustard and was used as a cheap substitute for mustard. Although this was a very popular practice among the common folk, the upper class scorned this idea, and for many years candytuft was rarely grown in estate gardens.
The perennial candytuft did not suffer the effects of snobbery, for it is a wonderfully beautiful plant, first sent to Chelsea Gardens in London from Persia in 1793. According to the Oriental language of flowers, perennial candytuft was a symbol of indifference, because it is adaptable to a wide range of conditions."

Courtesy of ~

http://goodwitchesmagickalflowersandherbs.blogspot.com/2013/03/candytuft.html?m=1