Cosmos

About This Plant...

Genus and species: Cosmos sulphureus; Cosmos bipinnatus

Plant type: warm-season annual

Height: 1-2 feet (C. sulphureus); 3-5 feet (C. bipinnatus)

Location and soil: sun; tolerates poor soil

Uses: cutting, bedding, border, background

Bloom time: late spring-early autumn

Color range: orange, yellow (C. sulphureus); pink, red, white (C. bipinnatus)

Indoor Sowing...

Time needed to reach transplant size: 4 weeks

When to transplant to garden: after last heavy spring frost

Outdoor Sowing...

When to sow outdoors: after last heavy spring frost

Other Sowing Guidelines...

Approx. germination time: 15 days

Germination temp.: 75-80 degrees F.

Sowing Depth: 1/8 inch

Needs light or dark to germinate: -

Transplanting Guidelines...

Spacing between plants: 12 inches

Growing On...

Pests:

Diseases:

Growing tips: tall varieties need staking; tolerates light frost

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