This variety of Cosmos is native to Mexico and Central and South America. As such, it can tolerate growing with very little water after the seeds germinate. It was introduced into English horticulture in the late 18th century.
Diablo Cosmos is of the speciesCosmos sulphureus. This species of flower was preferred by the Korean-Japanese botanist and plant breeder Dr. Woo Jang-choon in his program of planting cosmos flowers along the highways and railroads in Japan and Korea.
In 1974 Diablo Cosmos won the All-America Selections award for Flowers.
Reintroduced for 2019
Half-hardy annual plants grow to 2-3 feet
Long lasting cut flower
Good for ornamental plantings
Instructions - Sow seeds outdoors after the last frost. Cosmos prefer poor soil. They will thrive with very little attention and do not need a lot of water. Excellent cut flower. Remove spent blossoms regularly to prolong blooming. May require staking.
Sow 1/" Deep
Germination 3-10 days
Scatter seeds and thin to 18" apart
Full Sun to Partial Shade
Firefly Farm & Mercantile may substitute seed vendors from time to time because of availability