SWAMP SUNFLOWER seeds. Easy to grow, tough as nails true sunflower. Native to North American coastal areas, they can be found growing around a salt marsh or in a roadside ditch. They thrive in almost all conditions. These don't spread aggressively like some sunflowers, but rather form clumps that can last for years. This is a tall, good-looking plant that blooms profusely in fall, when most perennials are ready for a long nap. 3" bright yellow daisy like flowers, with a black center, they look like a Black-Eyed Susan. They make long lasting cut flowers. Also, they are a host plant for the Checker Spot Butterfly and a fall/winter seed source for Cardinals, Orioles, Thrushes and many others.100+ Seeds per order. Thank You!