Cosmos Flower Annual. Two annual species Cosmos sulphureus and Cosmos bipinnatus are the ones most commonly seen in the home garden. Flower color is very variable between the different species.
The leaves are simple pinnate or bipinnate and arranged in opposite pairs. As its name suggests Cosmos sulphureus usually has orange red or yellow petals. The two species have different leaf color and flower structure.
The flowers sit atop long slender stems and form a cloud of color that not only looks attractive throughout the summer but also attracts bees butterflies and birds to your garden.
Although there are 20 known species of cosmos two annual species Cosmos sulphureus and Cosmos bipinnatus are most familiar to home gardeners. They are annual flowering plants that can easily grow up to 7 feet in height. May 18 2021 Cosmos are annual flowers with colorful daisy-like flowers that sit atop long slender stems. The leaves are simple pinnate or bipinnate and arranged in opposite pairs.