It was named for the man who wrote the first scientific description of the flower, Dr. Johann Gottfried Zinn. But it wasn't until the late 19 th century that plant breeders started to pay any attention to this species. What made it so attractive to gardeners was that it was available in different colors. It also was considered to be a new trend in plant habit and flower form. Today, zinnias come in single, double, or semidouble flower forms.
Zinnias are easy to start from seeds, indoors or outdoors.
Just follow the directions on the seed packet. For earlier bloom, you may want to start seeds indoors about four to six weeks before the average last frost date in your area. Zinnias also are available as bedding plants although you won't find as large a selection as you would if you purchase seeds to grow your own. Zinnias aren't particularly fussy about soil type and will grow well in just about any soil. But you can boost soil fertility and improve drainage by working in two or three inches of compost or peat moss.