You don't have one ?

a blue plumbago..

From Floridata:
"Plumbago is an evergreen shrub with whip-like semiwoody stems that form a loose, rounded mound 3-10 ft high with a similar spread. Plumbago can be pruned to grow like a vine and scramble over supports, or pruned into a more compact mounded shrub, or left to sprawl with its long, gracefully arching branches. The leaves are a fresh, light yellowish green color.
The sky blue flowers are 1 inch long tubes. The flowers are in rounded terminal clusters and look quite a bit like phlox flowers. Plumbago blooms all year long except for the coldest winter months.

A popular ornamental in subtropical gardens in Florida, it requires little water, fitting in with a Florida Friendly landscaped yard. "