Photo by Melody

PlantFiles: Common Cosmos, Mexican Aster
Cosmos bipinnatus 'Double Click'

Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Cosmos (KOS-mus) (Info)
Species: bipinnatus (by-pin-NAY-tus) (Info)
Cultivar: Double Click

One vendor has this plant for sale.

12 members have or want this plant for trade.


24-36 in. (60-90 cm)
36-48 in. (90-120 cm)

18-24 in. (45-60 cm)

Not Applicable

Sun Exposure:
Full Sun

Parts of plant are poisonous if ingested

Bloom Color:
White/Near White

Bloom Time:
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Mid Fall


Other details:
This plant is attractive to bees, butterflies and/or birds
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Self-sows freely; deadhead if you do not want volunteer seedlings next season

Soil pH requirements:
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)

Patent Information:

Propagation Methods:
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
Properly cleaned, seed can be successfully stored

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There are a total of 14 photos.
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1 positive
1 neutral
No negatives

Gardeners' Notes:

Positive threegardeners On Sep 14, 2007, threegardeners from North Augusta, ON wrote:

Wonderful plant. Nice and bushy, covered with blooms, drought tolerant. It will forever be a yearly addition to my gardens.

Neutral bigcityal On Sep 5, 2006, bigcityal from Menasha, WI (Zone 5a) wrote:

My verdict is still out on this plant. I was expecting it to be similar to other cosmos but puffy. The stems do not hold the flowers upright very well, the flowers do not last long, and it seems to get more powdery mildew is what I have noticed.


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

Glen Avon, California
Milpitas, California
Wilton, Connecticut
Fort Lauderdale, Florida
Raleigh, North Carolina
Pittsburgh, Pennsylvania
North Augusta, South Carolina
Simpsonville, South Carolina
Fort Worth, Texas
Salt Lake City, Utah
Kalama, Washington
Menasha, Wisconsin

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