Scientific Name
Cosmos sulphureus

Common Name
Orange cosmos; Sulphur cosmos; Klondike cosmos

Flowering Season: Summer
Light Requirements: Sun
Flower Color: Gold, yellow, orange, scarlet; often semi-double
Height: 18 to 36 inches
Spacing: 8 to 24 inches
Comments: Prefers dry, infertile soil with good drainage; avoid strong wind; may need staking; avoid over fertilization; heat tolerant; deadhead; water generously
Cultivars: Sunny Red (24”); Sunny Gold (12”); Lemon Twist; Bright Lights (mixed colors)
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© Erv Evans, Consumer Horticulturist
Shoprights, NC State University