The best time to plant azaleas is generally in the spring or fall when temperatures are moderate and not too hot or cold. Fall planting is often ideal as it allows azaleas to establish their roots before spring growth begins. In milder regions, azaleas can be planted almost any time of year, but spring or fall are preferred for better root development. Container-grown azaleas can be planted anytime, while bare-root plants are best planted during the winter dormant season. Azaleas prefer partial shade, acidic well-drained soil, and should be planted with the root ball slightly above soil grade for optimal growth.