Photo by Melody

PlantFiles: Common Cosmos, Mexican Aster
Cosmos bipinnatus 'Pied Piper Red'

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

7 members have or want this plant for trade.


24-36 in. (60-90 cm)

9-12 in. (22-30 cm)
12-15 in. (30-38 cm)
15-18 in. (38-45 cm)

Not Applicable

Sun Exposure:
Full Sun

Unknown - Tell us

Bloom Color:

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


Other details:
This plant is attractive to bees, butterflies and/or birds
Average Water Needs; Water regularly; do not overwater
Flowers are good for cutting

Soil pH requirements:
6.1 to 6.5 (mildly acidic)

Patent Information:

Propagation Methods:
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 WaterCan2
Thumbnail #1 of Cosmos bipinnatus by WaterCan2

By WaterCan2
Thumbnail #2 of Cosmos bipinnatus by WaterCan2


1 positive
1 neutral
1 negative

Gardeners' Notes:

Negative aguy1947 On Jul 22, 2013, aguy1947 from Portugal Cove-St. Philip's, NL (Zone 5a) wrote:

Rabbit problem: After munching 6 Gazania plants to the ground, then uprooting two, the Cosmos bipinnatus Picotee took a hit - 6 plants which were about two ft tall ..... disappeared. I like Cosmos, short and tall, and this is the first year that I have had a problem with rabbits.

Positive WaterCan2 On Oct 6, 2007, WaterCan2 from Eastern Long Island, NY (Zone 7a) wrote:

Very hardy and flowers profusely. Typically "wirey" it reaches apx 3 feet on weak stems. I prefer not to stake them, they seem to enjoy the freedom, likes full sun.

Neutral oceangirl On Feb 6, 2005, oceangirl from Cape Cod, MA (Zone 7a) wrote:

The only separate color available from the "Seashells" type,
with fluted petals of velvet crimson-red.


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

Bridgeton, North Carolina
Kalama, Washington

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