Photo by Melody

PlantFiles: Common Cosmos, Mexican Aster
Cosmos sulphureus 'Cosmic Yellow'

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

One vendor has this plant for sale.

3 members have or want this plant for trade.

Category:
Annuals

Height:
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)

Spacing:
12-15 in. (30-38 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:
Average Water Needs; Water regularly; do not overwater
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Flowers are good for cutting
Suitable for growing in containers

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

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds
Allow seedheads to dry on plants; remove and collect seeds

Click thumbnail
to view:

By johnpeten
Thumbnail #1 of Cosmos sulphureus by johnpeten

By DMgardener
Thumbnail #2 of Cosmos sulphureus by DMgardener

Profile:

1 positive
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorContent
Neutral MelaniePalmero On May 24, 2011, MelaniePalmero from Davao City
Philippines wrote:

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. :)

Positive vaalriver On Jun 20, 2009, vaalriver from Houston, TX (Zone 9a) wrote:

Doing very well in Houston's blazing summer heat.

Regional...

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

Barberton, Ohio
Houston, Texas



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