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Common Cosmos, Mexican Aster
Cosmos sulphureus 'Cosmic Orange'

Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Cosmos (KOS-mus) (Info)
Species: sulphureus (sul-FER-ee-us) (Info)
Cultivar: Cosmic Orange

Category:

Annuals

Height:

12-18 in. (30-45 cm)

Spacing:

9-12 in. (22-30 cm)

Hardiness:

Not Applicable

Sun Exposure:

Full Sun

Danger:

Parts of plant are poisonous if ingested

Bloom Color:

Orange

Bloom Time:

Blooms all year

Foliage:

Herbaceous

Other details:

This plant is attractive to bees, butterflies and/or birds

Drought-tolerant; suitable for xeriscaping

Self-sows freely; deadhead if you do not want volunteer seedlings next season

Soil pH requirements:

7.6 to 7.8 (mildly alkaline)

7.9 to 8.5 (alkaline)

Patent Information:

Unknown - Tell us

Propagation Methods:

From seed; direct sow outdoors in fall

From seed; winter sow in vented containers, coldframe or unheated greenhouse

Direct sow as soon as the ground can be worked

From seed; sow indoors before last frost

From seed; direct sow after last frost

Seed Collecting:

Allow seedheads to dry on plants; remove and collect seeds

Regional

This plant has been said to grow in the following regions:

Calistoga, California

Richmond, California

Clifton, Colorado

Dunnellon, Florida

Union, Kentucky

Roswell, New Mexico

Massillon, Ohio

Summerville, South Carolina

San Antonio, Texas

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Gardeners' Notes:

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RatingContent
Positive

On Aug 4, 2005, ineedacupoftea from Denver, CO wrote:

The best plant to spoil a pastel cottage garden.

It is the brightest orange in the plant world. (That I've seen) Those that see my garden never forget it, and ask about it later.. It is a compact version of C. sulphureus of extreme color. They begin blooming in early August, and the plants will continue to be 100% covered with flowers until frost if deadheaded. It is a true front-row border plant in size, but be warned, as a border it may steal the show and distract from even the most impressive plant behind it.

Here's to the reason that road-construction signs are blaze-orange,
James