Longtime favorites for colorful, round flowers, typically in summer and early fall.
These are hot-weather plants that do not gain from being planted early; they merely stand still until the weather warms up. Subject to mildew in foggy places, if given overhead water, and when autumn brings longer nights, more dew and shade. Sow seeds where plants are to grow (or set out nursery plants) from late spring to early summer. Give good garden soil, feed generously. Most garden zinnias belong to Z. elegans.
Annual, from Mexico. This is the common garden zinnia, sold in strains ranging from less than a foot high and wide to 4 ft. tall and half as wide. Oval to lance-shaped leaves to 5 in. long; summer flowers from less than 1 in. to as much as 5–7 in. across. Forms include full double, cactus flowered (with quilled rays), and crested (cushionlike center surrounded by rows of broad rays); the many colors available include white, pink, salmon, rose, red, yellow, orange, lavender, and purple. Some flowers are multicolored.
Deciduous plant from China. Reaches 3 ft. high and wide, with 2-ft.-long leaves; 4-in., fragrant, pure...
Wild species (for which seed is available) grows to 2–4 ft. tall (possibly to 6 ft. under ideal ...
Perennial in Zones 1–24, H1; often grown as an annual in all zones. Native to California and Ore...