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Product Description
Brighten your garden with the radiant charm of Swamp Sunflower Seeds (Helianthus angustifolius). These native perennial sunflowers boast vibrant yellow blooms with dark centers, attracting pollinators like bees, butterflies, and birds. Ideal for gardeners in USDA hardiness zones 3–9, they thrive in moist to average soils and can tolerate periods of drought once established. Whether you're planting in a rain garden, along a pond, or in a sunny border, these sunflowers add a touch of wild beauty to your landscape.
Planting Swamp Sunflowers is straightforward: sow seeds ¼ inch deep in early spring or late fall, spacing them 12–18 inches apart. They prefer full sun but can tolerate part shade. Once established, they require minimal maintenance, making them suitable for both novice and experienced gardeners. Enjoy the late-season blooms and the joy of supporting local wildlife with these stunning sunflowers.

Life Cycle
Perennial
Planting Season
Spring, Early Summer
Growth Habit
Tall, Upright
Flavor Profile
Mild, Earthy
Plant Characteristics
Yellow Flowers, Tolerant Leaves
Use
Ornamental, Pollinator-Friendly
Growing Conditions
Moist, Sunny
Harvest Advantages
Low Maintenance, High Yield
Plant Resistance
Drought Tolerant, Deer Resistant
Helianthus angustifolius
Seed Names
Swamp Sunflower, Helianthus angustifolius
Seed Type
Heirloom, Open Pollinated
Swamp Sunflower is a hardy perennial native to wetland regions, known for its tall, upright growth and striking yellow blooms. It thrives in moist conditions and attracts pollinators, making it a valuable addition to both ornamental gardens and wildlife habitats. This sunflower is perfect for low-maintenance landscapes where beauty and sustainability intersect.
Light Requirement
Full Sun
Planting Depth
1/4 Inch
Sowing Method
Direct Sow or Indoor Start
Plant Spacing
12–18 Inches
Days to Maturity
90–120 Days
Soil Preparation
Soak 24 Hours
Hardiness Zones
4–9
Water Needs
High
Planting Season
Spring to Early Summer
Seed Count
Recommended Coverage
100
Up to 40 Sq Ft
500
Up to 200 Sq Ft
1000
Up to 400 Sq Ft
My backyard has never been livelier. The seeds are fresh and hold up well in the feeder. Seeing a variety of birds makes mornings enjoyable.
The seeds are fresh and natural, but some are smaller than I expected. Birds still love them, though, and they keep returning. Overall, a solid purchase.
Whether it�s spring or fall, these seeds attract birds consistently. I appreciate the clean, natural quality without fillers. Feeder looks busy every day now.
I bought these seeds to attract local birds, and they didn�t disappoint. The birds show up daily, and the quality seems top-notch. Definitely worth the price for any backyard enthusiast.
These seeds are fresh and birds love them, but the cost is a bit higher than other options. Still, the quality makes up for it.