The flowering shrub, Brunfelsia, is commonly known by the name "Yesterday, Today and Tomorrow." It grows well in zones 9, 10 and 11. Most commonly at about 3 feet tall, without pruning, it can get to 10 feet in height.
What makes this plant so lovely and unusual is that the color of the flower changes during the day. It will open in a soft purple, change to pastel lilac and then finish near-white. With all three colors on the plant at one time, it is outstandingly beautiful. It is a favorite of mine, though I understand the plant is poisonous to animals.