Home > Types of Flowers > Cosmos sulphureus

Cosmos sulphureus (Sulphur cosmos,Klondike cosmos, Orange cosmos)

Cosmos sulphureus

Botanical Name:    Cosmos sulphureus

Common Name(s):    Sulphur cosmos, Klondike cosmos, Orange cosmos

Family:    Asteraceae

Genus:    Cosmos

Species:    sulphureus

Plant Type:    Annuals

Height:    12-79 in.(0.3-2 m)

Spread:    9-12 in. (22-30 cm)

Bloom Time:    June to September

Bloom Color(s):    Yellow, Orange, Red

Leaves:    Green

Range:    Central America


Cosmos sulphureus (klondike cosmos, sulphur cosmos, orange cosmos) is an upright, hairy-stemmed, annual plant that grows to 12-79 in.(0.3-2 m) tall by 9-12 in. (22-30 cm) wide. It is native to Mexico. The leaves are opposite, 2-3 pinnate with lanceolate leaflets. The flowers are bowl-shaped, 2-3 in. (5-7.6 cm) in diameter, with red, orange or yellow rays and yellow centers. The preference is full sun, and medium moisture, well-drained, well-drained, sandy soils. Tolerates poor soils.

How to Grow

Sun:    Full sun

Water:    Dry to medium

Soil:    Well-drained, sandy soils

Propagation:    Seed