Top Cosmo Varieties
Klondyke Orange - Brilliant orange flowers
Dwarf Sulphur Yellow - Buttery yellow flowers, compact and grow up to 18" tall.
Dwarf White - Snow white flowers
Daydream - Pastel pink flowers with dark pink highlights
Sensation Mix - A mix of maroon, pink, white, and lavender flowers
All About CosmosCosmo flowers are 3-5 inches wide and bowl shaped. There are yellow, white, pink, orange, purple, red, and maroon varieties, so you can fill the flower garden with color. Cosmos are tall, often reaching up to 6-feet, and the flowers bloom atop tall, graceful stems. Butterflies, bees, and birds all adore these flowers, too.
Because they grow so tall, Cosmos may need to be staked. Growing them against a building or fence also works wonderfully.
How To Grow Cosmos From SeedCosmo plants grow quickly and don't need to be started indoors first.
- Plant outdoors in spring after all danger of frost has passed
- Choose a location in full sun
- Water the planting area first, so pressure of watering doesn't disturb the seeds later
- Scatter Cosmo seeds over the soil
- Very lightly press the seeds into the soil – this is best done by walking over them. Don't bury them as they need sun to germinate.
- Keep the soil moist until the seeds sprout and get established, then water, as needed.
- It takes about 7 weeks for flowers to bloom, and then they'll bloom all the way through fall.
- Deadhead the flowers after blooming to prevent rapid self-seeding. Otherwise, let them go and they'll come up the following year(s).