11. Pansy (Viola tricolor var. hortensis) Usually found in partial shade, these plants flower from April to September. While petals with tricolors (purple, white, and yellow) are much sought-after ...

18 Gorgeous Yellow Perennial Flowers To Make Your Garden Pop 1. Achillea (Achillea millefolium) Also known as yarrow, Achillea is a perennial plant with clusters of bright yellow blooms that show ...