Plants of the Southwest
Helianthus annuus
Annual Sunflower
A robust annual to 10 ft. with heart-shaped leaves and many 4" yellow sunflowers. Ancestor of the cultivated varieties. Its seeds are loved by birds. Annual Sunflower blooms summer into fall. Sow spring or fall. Zones 3-8.
Legend of Symbols
Full Sun |
Part Shade |
Fragrant |
Very Low Water  |
Low Water  |
Medium Water  |
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