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PlantFiles: Common Cosmos, Mexican Aster
Cosmos bipinnatus 'Sensation Mix'

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

4 vendors have this plant for sale.

38 members have or want this plant for trade.

Category:
Annuals

Height:
18-24 in. (45-60 cm)
24-36 in. (60-90 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:
Pink
Fuchsia (Red-Purple)
White/Near White

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

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

Patent Information:
Unknown - Tell us

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

Seed Collecting:
Collect seedhead/pod when flowers fade; allow to dry

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By Crimson
Thumbnail #1 of Cosmos bipinnatus by Crimson

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There are a total of 23 photos.
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Profile:

4 positives
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive outdoorlover On Sep 7, 2014, outdoorlover from Enid, OK (Zone 7a) wrote:

I love these beautiful flowers! They grow very well in zone 7. This is the 3rd year I have collected its seeds and replanted them.

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

Quite beautiful in any garden, Cosmos are part of several of my color and shape schemes. They regulary get to 5' high and a few times 8' high. The seedheads are very attractive to American Goldfinches.

Neutral berrygirl On Mar 4, 2007, berrygirl from Braselton, GA (Zone 7b) wrote:

I AAS winner in 1936. One of the earliest blooming cosmos- great for Northern gardeners. Grows well in light, dry soils. This half-hardy annual reaches 4-5 ft tall.

Positive Maria On Mar 25, 2005, Maria from Rehoboth, MA (Zone 5a) wrote:

In my garden this plant grows to 7 feet tall with robust stems but need support from high winds. self seeds but these will not repeat its hight as before.

Positive nevadagdn On Mar 24, 2005, nevadagdn from Sparks, NV (Zone 7a) wrote:

This plant reseeds copiously. Small birds like to snack on the seeds, too.

Regional...

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

Lake Forest, California
Sacramento, California
Camden Wyoming, Delaware
Bloomington, Indiana
Prospect, Kentucky
Foxboro, Massachusetts
Rehoboth, Massachusetts
Uxbridge, Massachusetts
Bellaire, Michigan
New Baltimore, Michigan
Mathiston, Mississippi
Blair, Nebraska
Sparks, Nevada
Livingston, New Jersey
Mullica Hill, New Jersey
Hornell, New York
Putnam Valley, New York
Mars Hill, North Carolina
Mount Orab, Ohio
Enid, Oklahoma
Oklahoma City, Oklahoma
Harrisburg, Pennsylvania
Mountain Top, Pennsylvania
Campobello, South Carolina
Greenville, South Carolina
Dallas, Texas
Fort Worth, Texas
Fulton, Texas
San Antonio, Texas
Leesburg, Virginia
Kalama, Washington
Spokane, Washington



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