Is there a more agreeable flower to grow from seed than zinnias? They come up from seed, add color until frost and bring skippers and butterflies by the dozens, followed by finches who want the dry flower heads.
One of the 2010 All American Selections, double cherry zinnia is widely available now.
Double Cherry Zinnia Seed Sources
Park Seed - 25 seeds $3.
Ivy Garth Seed - 250 seeds for $15.00
HPS Horticultural - 100 seeds $6