Swamp Sunflower

Swamp Sunflower (Helianthus angustifolius)

Swamp Sunflower (Helianthus angustifolius), also known as Narrowleaf Sunflower, is a tall, late-season perennial known for its dazzling display of golden-yellow blooms in fall. This native wildflower thrives in moist conditions, making it an excellent choice for rain gardens, meadows, and pollinator-friendly landscapes. Its towering height and abundant blooms provide a valuable nectar source for bees, butterflies, and other beneficial pollinators.

Distinctive Features

Swamp Sunflower produces masses of bright yellow, daisy-like flowers with dark brown centers on tall, upright stems. Its narrow, lance-shaped green leaves create a striking contrast with the golden blooms, adding vertical interest to garden plantings.

Growing Conditions

• Sun Exposure: Prefers full sun.
• Soil: Moist, well-drained, fertile soil; tolerates clay and sandy soils.
• Water: Prefers consistent moisture; thrives in wet conditions.
• USDA Hardiness Zones: 5-9, adaptable to a variety of climates.

Ideal Uses

• Rain Gardens: Thrives in wet soil conditions.
• Pollinator Gardens: Provides nectar for bees and butterflies.
• Meadow and Prairie Plantings: Naturalizes beautifully.
• Mass Plantings: Creates a striking golden display.
• Cut Flower Gardens: Long-lasting blooms are excellent for floral arrangements.

Low Maintenance Care

Swamp Sunflower is an easy-to-grow perennial that requires minimal care.

• Watering: Prefers consistent moisture; tolerates brief dry periods.
• Pruning: Cut back in late fall to encourage fresh growth in spring.
• Fertilizing: Minimal feeding required; compost or organic mulch supports healthy growth.
• Deer and Rabbit Resistance: Generally unpalatable to browsing animals.

Why Choose Swamp Sunflower?

This towering, late-blooming perennial provides golden hues and vital pollinator support.

• Bright Yellow Blooms: Adds warmth and vibrancy to the autumn landscape.
• Extended Bloom Season: Flowers persist into fall.
• Thrives in Wet Areas: Perfect for rain gardens and low-lying sites.
• Pollinator-Friendly: Provides nectar for late-season insects.

For a bold, native perennial with exceptional late-season blooms, Swamp Sunflower (Helianthus angustifolius) is an excellent choice.