Crossword clues for the word: NASTURTIUM The word NASTURTIUM has appeared as an answer to at least 9 crossword clues on different crossword puzzles. Crossword clues for NASTURTIUM Showing 1 to 9 of 9 results Clue(s) Edible blossom Evident Flower that may create autumn riots, nothing less Flowering plant Genus of plants in the cabbage family whose round flat leaves are used in salads I must turn a failing flowering plant Mean-spirited bloomer? Popular flower Spurred flower.