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Common Cosmos, Mexican Aster 'Cosmic Yellow'

Cosmossulphureus

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Cosmos sulphureus by johnpeten
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Family
Asteraceae (ass-ter-AY-see-ee)
Info
Genus
Cosmos (KOS-mus)
Info
Species
sulphureus (sul-FER-ee-us)
Info
Synonym
Sun Exposure
Full Sun
Foliage
Herbaceous
Height
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)
Spacing
12-15 in. (30-38 cm)
Hardiness
Not Applicable
Danger
Parts of plant are poisonous if ingested
Bloom Color
Orange
Bloom Time
Blooms all year
Other Details
Category
Annuals
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color

Unknown - Tell us

Where to Grow
Can be grown as an annual
Bloom Characteristics
Flowers are good for cutting
Bloom Size

Unknown - Tell us

Other details

Unknown - Tell us

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
From seed; direct sow after last frost
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Seed Collecting
Allow pods to dry on plant; break open to collect seeds
Allow seedheads to dry on plants; remove and collect seeds
Regional

This plant is said to grow outdoors in the following regions:

Barberton, Ohio

Houston, Texas

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3 members have or want this plant for trade

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Gardener's Notes:

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M
M
MelaniePalmero
| May 2011 | neutral

The yellow cosmos is an amazing flower. If you're curious about what it looks like, we've got an beautiful picture of it in our blog. :)

V
V
vaalriver
Houston, TX (Zone 9a) | June 2009 | positive

Doing very well in Houston's blazing summer heat.

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