Definition of calla in English:
Either of two plants of the arum family:
- Start begonias, caladiums, callas, cannas, and dahlias in pots indoors on a sunny windowsill.
- Don't overlook summer-blooming callas, dahlias and cannas.
- After frost kills their foliage, dig up callas, cannas, dahlias, tuberous begonias, and other tender bulbs.
early 19th century: modern Latin.