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Narrowleaf Sunflower Ironweed Seeds
Helianthus angustifolius
Also known as Swamp sunflower, Narrowleaf sunflower is one of Florida’s most common sunflowers. It occurs naturally in marshes, wet flatwoods and roadside ditches throughout North and Central Florida. It is a short-lived perennial, and blooms primarily in October and November, although some flowering can occur in September and December. In nature, it tends to form dense colonies, resulting in spectacular swaths of sunshine yellow. Narrowleaf sunflower blooms attract bees and butterflies, while its seeds provide a tasty treat for birds.
Variety Info:
Tall, branching stems with somewhat sparse, linear leaves support a riotous chorus of yellow blooms. Attractive to butterflies. Best in consistently moist, acid soils. Performs well under garden conditions as long as soil does not dry out.
Lifespan: Perennial
Light exposure: Full sun to light pine shade
Bloom color: Yellow
Bloom season: Late summer to fall
Height (in bloom): Up to 6 feet
Habitat: Moist pinelands and disturbed areas
Note: Swamp sunflower strongly resembles and can hybridize with Florida sunflower (Helianthus floridanus). However, Florida sunflower has rhizomes and Swamp sunflower does not.
Each packet covers 10 square feet.
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