Helianthus annuus (Annual sunflower)

Drought tolerant annual; full sunlight. Yellow daisy-like flowers with dark centers grow two inches across. Multi-stemmed plant grows irregularly in waste areas such as abandoned farm fields, roadsides, or gravel pits. Easily established, often found in large colonies. Seeds provide good food for many birds; highly sought after by dove.  May be listed as noxious in some states.

native distribution

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INFORMATION & ATTRIBUTES

Family: Asteraceae

Duration: Perennial

Growth Habit: Forb/herb

Native Status: Native

Growth Form: Single crown

Mature Height: 9 ft.

Bloom Color: Yellow

Bloom Period: Summer

Annual Precipitation: 12-60 in.

Drought Tolerance: Medium

Shade Tolerance: Intolerant

Elevation:

Wetland Indicator Status: FACU

Fire Resistance: No

Fire Tolerance: None

Nitrogen fixation:

SOIL ADAPTATION

Coarse Texture: Yes

Medium Texture: Yes

Fine Texture: Yes

Salinity Tolerance: Medium

CaCO3 Tolerance: Medium

pH Range: 5.5-7.8


SEEDING NOTES

Seeds per Pound: 46,900

Seeding Rate: 10-20 PLS lbs/acre

Season: 

Days to Germination:


VARIETIES & LOCAL ACCESSIONS

None