Crossword clues for the word: WINDOWBOX The word WINDOWBOX has appeared as an answer to at least 5 crossword clues on different crossword puzzles. Crossword clues for WINDOWBOX Showing 1 to 5 of 5 results Clue(s) *Place for a row of potted plants "Extent of an apartment dweller's garden, perhaps" Place for some super-fresh herbs Planter of a sort Planter on a sill