Annual. Gorgeous 4" - 6" sunset-hued flowers with dark centers bloom in abundance over a long bloom period to keep your garden alight, and your flower vases full for many weeks. Rich tones of vivid gold, autumn orange, warm mahogany and blazing bronze are all on one plant! Multi-branching habit makes for an excellent annual screen or fence cover-up. Sunflowers are one of the easiest flowering plants to grow.