Sunflower
Helianthus annuus 'Big Smile'

Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Helianthus (hee-lee-AN-thus) (Info)
Species: annuus (AN-yoo-us) (Info)
Cultivar: Big Smile

Category:

Annuals

Height:

12-18 in. (30-45 cm)

18-24 in. (45-60 cm)

Spacing:

9-12 in. (22-30 cm)

Hardiness:

Not Applicable

Sun Exposure:

Full Sun

Danger:

N/A

Bloom Color:

Bright Yellow

Bloom Time:

Mid Summer

Late Summer/Early Fall

Foliage:

Herbaceous

Other details:

This plant is attractive to bees, butterflies and/or birds

Average Water Needs; Water regularly; do not overwater

Self-sows freely; deadhead if you do not want volunteer seedlings next season

This plant is resistant to deer

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

7.9 to 8.5 (alkaline)

Patent Information:

Non-patented

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:

Loveland, Colorado

Redford, Michigan

Racine, Wisconsin

Gardeners' Notes:

1
positive
1
neutral
0
negatives
RatingContent
Neutral

On Apr 30, 2012, vossner from Richmond, TX (Zone 9a) wrote:

Direct sowed on March 8 and first bloom has appeared today. Not a very strong or pretty one but perhaps it will be better. The other seedlings don't look particularly strong, wondering if it is b/c I planted in less than full, brutal TX sun. It is very small, at about 8" tall.

Positive

On Jul 11, 2005, westocast73 from (Zone 1) wrote:

Dwarf Single Bloom Sunflower

Very short (mine are 8-12 inches Tall and Seed Packet says 12-18 Inches) bright yellow sunflower.The flower itself is about 4 to 6 inches wide. Single Bloom that comes in about 55 days. Looks great.Can be grown in smaller 4 inch pots and makes an excellent little gift like that.