Genus Azalea Species x Cultivar 'Mandarin Lights' Common Name Mandarin Lights Deciduous Azalea Patent ID Height 6 to 8 Feet Spread 5 to 6 Feet Habit Upright to rounded shrub. Moderate growth rate. Zone 4 to 8 Culture Full sun to partial shade. Flower Slightly ruffled, bright orange to orange red. Late spring bloomer. Flower Color Orange 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.