Many deciduous azalea hybrids are not tolerant of high heat for extended periods, particularly high night-time temperatures, and will slowly decline over a few years. Partial Shade: Plant azaleas in dappled sunlight, or in a spot with morning sun and afternoon shade. Azaleas' vivid colors, profusion of flowers and adaptability to a wide range of soils and climates make them one of the most popular flowering shrubs in Georgia. Azaleas do best in spots sheltered from harsh winds. The sun tolerance of azaleas and rhododendrons varies by species and selection. Planting Zone: Most azaleas are hardy to planting zones 6-9, with a few varieties tolerating colder temperatures up to zone 4. By carefully selecting plants, you can have azaleas blooming at least eight months of the year. Do not fertilize past June. Azalea Growing Conditions. In the south, fewer azaleas can thrive in full sun than in the north. Too much sun bleaches or burns the leaves; too little results in lanky plants that don't bloom. If possible, get a humidifier for the room you are planning on keeping your plant in, … While all 30 Encore Azalea varieties have tested cold hardy to at least USDA zone 7, University studies and extensive plantings throughout the Midwest and Northeast have shown 14 of the 30 varieties are cold hardy through USDA zone 6. Autumn/Winter Care: No pruning or maintenance needed. ... Azalea sun/shade tolerance is affected by your latitude. Although most people associate azaleas with spring, there are several that bloom in summer and fall. These plants do best in cool to normal room temperatures. Florida flame azalea or Florida azalea (R. austrinum) is an excellent landscape plant with heat tolerance. Keep the temperature at 60-70°F(16-21°C) for a healthy plant. Step 7 – Fertilizing. When the temperature suddenly drops and maintains 25 degrees or below, provide additional protection by driving stakes into the ground around the plants and draping material over the stakes. Leaf fall color The leaves of some deciduous azalea varieties show attractive fall colors, ranging from yellow through crimson to purple, before dropping off in late fall. In general, most types prefer the partial sun or filtered shade beneath tall trees. Since the late 1990's, Encore Azaleas have been tested in gardens, trials, and plant nurseries across the country. Each zone covers a 10 degree Fahrenheit range of average annual minimum temperatures. This species was used in the breeding of the Confederate series to provide both vigor and the ability to grow well in the heat on the coast. Plant Type(s): Flowering Shrub Color(s): Pink Plant Height: 1.5’ - 2’ Plant Width: 2’ - 3’ Hardy Zones: 6 - 9 Spring/Summer Care: For best flower production, always prune within 30 days after flowering then leave alone. The east and north sides of the house are better locations than the west and south. Keep your azalea at the right temperature. In areas with particularly cold winters or areas that alternate between freezing and warmer temperatures, cover plants with a burlap sack to give them additional protection. It is incredibly tolerant of cool temperatures, able to withstand temperatures as low as -25°F, though it will need to be protected from … Although fertilizing is important to healthy azaleas, keep in mind some recommendations from azalea experts. Choose burlap or any cloth material so the azalea receives air flow. Similarly, fewer azaleas, and particularly deciduous azaleas, can thrive in full shade in the north than in the south. 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