Eden Brothers Cosmos Seeds

These are annuals, meaning they will complete their entire life cycle—germinating, blooming, and setting seed—within a single growing season.

They require full sun to thrive, which means at least six to eight hours of direct sunlight daily. Planting them in a shadier spot will likely result in weak stems and fewer blooms.

No, that is part of their charm. The blooms vary in size between two and three inches and feature a range of blush and apricot tones, so you will see some natural variation across your garden.

Because they are tall and vigorous with dense branching, they generally support themselves well. However, if you live in an area with high winds, you might consider light staking to keep the taller stems upright.

While they are excellent in garden beds, you can grow them in large containers as long as the pot is deep enough to support their root system and you ensure consistent watering.