Noteworthy Characteristics: This cultivar has an diurnal extended blooming habit; its blooms remain open from the early morning until the evening, for at least 16 hours. Each flower lasts for only one day. It blooms at the peak of the daylily bloom in your own garden. This ranges from May in the South to July in the North.
[Start Text from http://www.bhg.com/gardening/plant-dictionary/annual/calibrachoa/] Like a tiny petunia on steroids, calibrachoa (also called million bells) grows and flowers at an amazing rate. Often confused for a petunia, million bells makes a splash no matter where you put it in the garden. It is perfect for containers or hanging baskets but also can be tucked into the front of a border where it will spill out onto sidewalk or patio. In fact, it may be the ultimate “spiller” for container gardens as long as you give it ample water and fertilizer, which it needs to fuel its astounding growth.