Genus Azalea Species x Cultivar 'White Lights' Common Name White Lights Deciduous Azalea Patent ID Height 3 to 4 Feet Spread 3 to 4 Feet Habit Medium rounded shrub. Moderate growth rate. Zone 4 to 8 Culture Full sun to partial shade. Flower Pale pink buds open to white flowers with a slight yellow blotch. Fragrant. A very heavy bloomer, March-April. Flower Color White Foliage Medium to dark green. Deciduous. Categories: Azalea Deciduous Shrub Description The ‘Northern Lights’ series was developed at the University of Minnesota for extreme cold hardiness and excellent flowering.