Hello Gardeners, I’m Amanda McNulty with Clemson Extension and Making It Grow . Our perennial, beautiful and prolific native swamp sunflower, Helianthus angustifolia , is native to the eastern united states and is an important plant for wildlife. But Helianthus annuus , the annual colorful sunflowers that produce seeds eaten by birds and mammals, including us, is native to the mid-west prairies, and is now a plant of world-wide importance. In the US, we think of it as a food to feed birds and to