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Swamp Sunflower

Scientific Name: Helianthus angustifolius L.
Synonym: Helianthus angustifolius var. planifolius
Family: Asteraceae

Recommended Temperature Zone:
Sunset®: 28-34
USDA: 8B-10

Sun Exposure: Full sun

Origin: Eastern USA, from New York to Florida and Texas inswamps

Growth Habits: Perennial, 2 to 8 feet tall (0.6 to 2.4 m.), 2 to 4 feet in spread (0.6 to 1.2 m.), lanceolate or linear leaves, 6.4 to 8 inches long (16 to 20 cm.)

Flowers: Yellow flowers, up to 3 inches wide (7.5 cm.)

Watering Needs: Abundant water to wet soil

List of All the Plants | More in the Asteraceae family

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