Crossword clues for the word: ALYSSUM The word ALYSSUM has appeared as an answer to at least 5 crossword clues on different crossword puzzles. Crossword clues for ALYSSUM Showing 1 to 5 of 5 results Clue(s) 'Sweet' plant of the mustard family """Sweet"" bloomer" A pest’s not the first problem for garden plant Rockery plant White or purple flower