Some clematis showcase bicolor blooms. One of the most well-known in this category is ‘Nelly Moser.’ This beauty unfurls very big, 7- to 9-inch flowers in late spring and early summer, followed by a second bloom in early fall. Each blossom displays pale lilac petals with a glowing pink bar down the center. Colors tend to fade in full sun, so give ‘Nelly Moser’ a spot with light shade. Flower centers sport shades of deep purple. For best flowering, remove top growth by one-third in early spring. Vines grow 6 to 10 feet tall by 3 feet wide. Grow beside a porch where you can enjoy the bicolor blossoms on a daily basis. Hardy in Zones 4 to 8.