Crape Myrtle Black Magic 'I'm a third victim': The Crash viewers slam Mackenzie Shirilla's. Crape Myrtle Purple Magic (Lagerstroemia indica) Compact ornamental shrub small tree known for its vibrant, deep purple flower clusters and attractive bark. Highly valued for long lasting blooms and excellent landscape structure. Water Requirements: Prefers consistent moisture during establishment. Once established, it is moderately drought tolerant. Water deeply but infrequently. Soil: Thrives in well draining soil; tolerates a wide range of soil types including clay, loam, and sandy soils. Growth Rate: Moderate to fast. Bloom Time: Produces abundant purple flower clusters from mid summer through early fall. Temperature: Heat loving and thrives in warm, humid climates. Cold hardy in USDA Zones 79; protect young plants from hard freezes. Pruning: Prune lightly in late winter or very early spring before new growth emerges. Remove crossing branches and shape as needed. Avoid severe crape murder topping. Toxicity: Considered non toxic to humans and pets.