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Common Cosmos, Mexican Aster
Cosmos bipinnatus 'Yellow Garden'

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

Category:

Annuals

Height:

24-36 in. (60-90 cm)

36-48 in. (90-120 cm)

Spacing:

18-24 in. (45-60 cm)

Hardiness:

Not Applicable

Sun Exposure:

Full Sun

Danger:

Parts of plant are poisonous if ingested

Bloom Color:

Bright Yellow

Bloom Time:

Late Spring/Early Summer

Mid Summer

Late Summer/Early Fall

Mid Fall

Foliage:

Blue-Green

Shiny/Glossy-Textured

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:

Unknown - Tell us

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

Regional

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

Calistoga, California

Richmond, California

San Jose, California

Barbourville, Kentucky

Gardeners' Notes:

0
positives
1
neutral
0
negatives
RatingContent
Neutral

On Sep 8, 2013, saya from Heerlen
Netherlands (Zone 8b) wrote:

Comparing with the more common grown Cosmos bipinnatus it is flowering later in the season. In my garden it started to flower early August. The flowers are also smaller. In its display it did'nt make me say 'wow', so I'm not sure if I will grow it again next year.