and as the blossoms age (usually the flowers live on the branch for a while), the color of the petals desaturates to a lighter blue. A great evergreen addition for zones 10 to 12, Guaiacum can ...

It comes in a true sky blue, but can grow pink, red, purple, and white flowers. In the garden, it tends to sprawl out. "It works great in containers as a spiller to enliven an arrangement with ...