Echinacea purpurea AKA Purple Coneflower draws bees and butterflies, ensuring that nearby plants have plenty of pollinators. The plant also provides a tall background or repeating rows of large, often 6 inches (15 cm.) across, purple, daisy-like flowers. The sturdy stalks, which may reach 5 feet (1.5 m.) in height, rarely bend or require staking for an upright appearance.