Like rhododendrons, azaleas thrive in acidic soil and cannot tolerate alkaline soil. They also like moist soil, but cannot tolerate wet feet. Zone 5 azaleas grow best in an area where they can receive a lot of sunlight, but are slightly shaded by tall trees in the afternoon heat.Click to see full answer. Correspondingly, where is the best place to plant azaleas?The best time to plant azaleas is in spring and fall. Plant them in a sunny spot that gets a good amount of afternoon shade. When planting azaleas, fill the hole with a 50/50 blend of existing soil and Miracle-Gro® Garden Soil for Trees & Shrubs. Once planted, gently tamp the soil and water thoroughly.Secondly, how long do azaleas take to grow? There are two types of azaleas. Evergreen azaleas, sometimes called Japanese azaleas, are smaller and slower growing, reaching up to 3ft ( up to 90cm) after ten years. Herein, how far north do azaleas grow? Rhododendron atlanticum, the dwarf azalea, grows on the coastal plain from Georgia to Delaware. It can be found up to 200 miles away from the coast, if the region is sandy, swampy, or dry. These plants can spread by rhizomes if the soil is loose. The flowers can be white or a light pink color, and are fragrant.Can azaleas grow in Zone 6?With few exceptions, most evergreen azaleas are only reliable in Zone 6. Low-growing ground cover azaleas such as ‘Joseph Hill’, a bright-red-flowering evergreen that grows only to about a foot. Tall varieties include the white-blooming sweet azalea (R. arborescens), a deciduous plant that can reach 20 feet tall.
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