Theodore Payne California Native Plant Database




Helianthus annuus

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Species Name: Helianthus annuus
Common Name: Common Sunflower

Robust annual, produces stout stalks of huge 2" sunflowers. Very showy!

Plant Family: Asteraceae
Plant Type: Annual
Height by Width: 6'h x 4'w
Growth Habit: Tall, upright
Deciduous/Evergreen: Semi-deciduous
Growth Rate: Fast
Sun Exposure: Full Sun
Soil Preference: Sand to loam
Water Requirements: Dry to Semi-dry
Cold Hardy to: Subtropical
Flower Season: Spring/Summer
Flower Color: Yellow
Endangered?: Not Listed
Distribution: California to eastern North America.
Natural Habitat: Disturbed areas, shrubland, many other habitats. Elevation: below 1900 meters.

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Other Names
References
  • Bornstein, Carol, David Fross, and Bart O'Brien. California Native Plants for the Garden. Los Olivos, CA: Cachuma Press. 2005.
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