Easy to grow, they require 1sun. Start with seeds. As an alternative, consider the great varieties of black-eyed Susans such as Goldsturm, Goldilocks, Irish Eyes or Herbstsonne. Coneflower Flowers of perennial coneflower have pink, purplish-red or white petals around a central disc. Coneflowers grow 2 to 3 feet tall and require full sun.
Plants live a long time.
Gomphrena Also called globe amaranth, gomphrena is an annual that bears small, round lavender, rose, red, white or purple blooms. Plants grow about 2 feet tall and need sun. Colors include bright and pale shades of yellow, orange, red and pink. The smaller varieties look better in arrangements. Cosmos Annual cosmos, easy to grow from seeds, produces daisy flowers in hot shades of red, yellow, purple and pink plus white.