NAPA, Calif. (KGO) -- In the North Bay, an annual spring art project is blooming right now. It puts a whole new meaning to the phrase "gilding the lily." Does a calla lily bloom this way naturally?

Technically, calla lily flowers are tiny and located on the yellow column, which is botanically known as a spadix. The showy white structure is a modified leaf called the spathe. This flower structure ...