Azaleas are perennials you can grow indoors or outdoors. They bloom in the spring and summer outdoors, but indoor blooming times vary due to greenhouse propagation. Azaleas have dark green foliage and form buds for blooming when kept at the right temperature and given the right amounts of light and moisture. Azaleas will brighten up any room in your home or add color to the office decor.
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Place the azalea in bright but indirect sunlight when about to bloom. Keep it entirely in the shade, out of intense, indirect sunlight when not blooming. Ideally, the temperature needs to remain at around 45 to 55 degrees F. at night and go no higher than 68 degrees F. in the day.
Water the azalea to keep the soil moist. Touch the soil surface to see if it feels dry. When the soil feels dry, water the plant, but do not saturate it. Never let the soil dry out completely.
Apply a water-soluble fertilizer to the azalea twice a year when the plant is not blooming. Use a fertilizer made for acid-loving plants, and dilute it with water according to the package directions.
Prune the azalea when you notice dead and damaged foliage, branches and blooms. Remove any plant material that rests on the soil so that it does not decompose and cause disease in the plant.
Place the azalea in an area with low light and a cool temperature between 30 and 50 degrees F in the winter. When the buds have set and the azalea begins to flower again, place it back in indirect sunlight with temperatures around 68 degrees F.
Transplant the azalea every two to three years. Place it in a bigger pot at each transplanting to allow it plenty of room to grow.