Are the cosmos an annual or perennial?

The flowers are bright and daisy-like.The most common annual variety grown in the United States is "Cosmos bipinnatus", which has more than 20 species of flowers.The chocolate cosmos is a perennial in the U.S. Department of Agriculture.

The flowers are bright and daisy-like.The most common annual variety grown in the United States is "Cosmos bipinnatus", which has more than 20 species of flowers.The chocolate cosmos is a perennial in the U.S. Department of Agriculture.

There are yellow, orange, red or golden flowers."Bright Lights," " Cosmic Yellow" and "Crest Red" are some of the common varieties.There are a variety of sizes of flowers from dwarfs to plants 3 to 4 feet tall.The foliage on these plants is hairy.

The flowers in the white, pink and rose range are similar to other varieties.As the blooms sway in the summer breeze, the cosmos is an airy appearance.The height can be from 1 to 6 feet."Seashell Mix," "Daydream" and the "Sensation" series are some of the common varieties.

The chocolate cosmos produces fragrant blooms that emit a chocolate or vanilla scent.The flowers are close to "oxblood red" than brown.Perennials in USDA plant hardiness zones 9 and 10 are the tuberous root cosmos.The tubers must be replanted in the spring in USDA zones 8 and below.

The appearance of being perennial is due to the fact that annual varieties may come back after their first year.cosmos can produce well for several years without replanting when allowed to self seed.