The term SHOWY GARDEN PLANT can be summarized by two crossword solutions: DAHLIA (6 letters) and PANSY (5 letters). Dahlias are a genus of flowering plants native to Mexico, Central America, and Colombia. They come in a variety of colors and sizes, and are often used as ornamental plants in gardens. Pansies are a type of flowering plant that is part of the Viola genus. They are also popular garden plants, and come in a wide range of colors and sizes.