• Theodore Payne Foundation inspires and educates Southern Californians about the beauty and ecological benefits of California native plant landscapes.

Helianthus annuus - Common Sunflower (Seed)

Helianthus annuus - Common Sunflower (Seed)



Plant Characteristics
Species NameHelianthus annuus
Common NameCommon Sunflower
Plant TypeAnnuals
Height by Width6ft. x 3ft.
Flower ColorYellow, Gold
Flowering MonthsJune, July, August, September, October
Sun ExposureInland-Sun
Water RequirementLow
Soil TypeAny
Sowing SeasonYear Round
Sowing Difficulty Level*Easy

* Sowing difficulty levels:
  • Easy: Sow in-ground or in pots with simple or no pretreatment
  • Moderate: Sow in-ground or in pots with pretreatment; may produce staggered germination
  • Difficult: Sow in pots with pretreatment and stratification; may produce staggered germination

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