What does "candytuft" mean?

Any of the genus Iberis of flowering plants.

What is a synonym for "candytuft"?

Common synonyms include: flower cluster, iberis, inflorescence.

noun

noun ·Rare ·Advanced level

Noun

1
Any of the genus Iberis of flowering plants.
2
any of various flowering plants of the genus Iberis cultivated for their showy clusters of white to red or purple flowers; native to Mediterranean region wordnet

From Italian Candia (“the name used by the Venetian occupiers of the city of Iraklion”) + tuft.