Attract butterflies and hummingbirds to your garden by adding a bright pop of color to your beds and borders! A breakthrough in color. Bicolor is the first Butterfly Bush to feature multiple colors on each bloom. The large. cone-shaped flower clusters of 'Bicolor' have a sweet. honey-like scent that makes the plant irresistible to pollinators. Panicles grow up to 10 inches and feature gold. pale pink and lavender florets beginning in summer and lasting into fall.