Photo by Melody

PlantFiles: Common Cosmos, Mexican Aster
Cosmos bipinnatus 'Pinkie'

Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Cosmos (KOS-mus) (Info)
Species: bipinnatus (by-pin-NAY-tus) (Info)
Cultivar: Pinkie
Additional cultivar information: (aka Pinky; Sensation series)

2 vendors have this plant for sale.

3 members have or want this plant for trade.


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

12-15 in. (30-38 cm)
15-18 in. (38-45 cm)

Not Applicable

Sun Exposure:
Full Sun

Parts of plant are poisonous if ingested

Bloom Color:

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


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:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information:
Unknown - Tell us

Propagation Methods:
From seed; sow indoors before last frost
From seed; direct sow after last frost

Seed Collecting:
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Click thumbnail
to view:

By aspenbooboo41
Thumbnail #1 of Cosmos bipinnatus by aspenbooboo41

By WaterCan2
Thumbnail #2 of Cosmos bipinnatus by WaterCan2

By DMgardener
Thumbnail #3 of Cosmos bipinnatus by DMgardener


1 positive
No neutrals
No negatives

Gardeners' Notes:

Positive DMgardener On Oct 2, 2009, DMgardener from (Daniel) Mount Orab, OH (Zone 6b) wrote:

The blooms are just soooo... beautiful! I can not get enough of these blooms! They are one of the few vars. that do not have stem rot, the main cause of death in Cosmos. The blooms are abnormally large for the species, 4".Their only problem is that they do not start blooming for 80 days. But will always be growing this plant!


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

Gainesville, Florida
Poland, Indiana
Whitehall, Pennsylvania

We recommend Firefox
Overwhelmed? There's a lot to see here. Try starting at our homepage.

[ Home | About | Advertise | Media Kit | Mission | Featured Companies | Submit an Article | Terms of Use | Tour | Rules | Privacy Policy | Contact Us ]

Back to the top

Copyright © 2000-2015 Dave's Garden, an Internet Brands company. All Rights Reserved.

Hope for America