10 Orange Daylily (Hemerocallis Fulva) Fans/Root Systems Plants. These wildly known flowers are throughout the eastern United States. They were naturalized from the gardens of the early European settlers. They spread gradually and are very effective for erosion control. These are very hardy and will grow in any soil, they also thrive in full sun to partial shade. Hardy in zones 2-9 Planting instructions included with every order.