Azalea indica var. simsii is native to East Asia, particularly Japan, and also known as Satsuki Azalea. Azalea indica var. simsii is a perennial shrub. It is from the Ericaceae family of plants. In their native habitat, they grow at higher altitudes of 500-2700m or 1650 to 9000ft. Azalea indica var. simsii is a Rhododendron species and is also known as Rhododendron simsii, Rhododendron breynii, Rhododendron danielsianum, Rhododendron decumbens, Rhododendron hannoense, Rhododendron indicum, Rhododendron lateritium, Rhododendron macranthum, and in japan. Azalea indica var. simsii can grow to 2m or 6ft high. It usually flowers from late winter to early summer, depending on the climate.
The foliage is ovate and elliptic and the flowers are funnel-shaped and range in colors from white to pinks, oranges, and reds. Azalea indica var. simsii is from two species of Rhododendron. It is adapted to growing indoors and in milder climates,, it is planted outdoors as well.
Many of Azalea indica var. simsii hybrids are raised as indoor plants though the intention is for a one time burst of color with a bit of effort you can keep it alive for a long time. Place the in a sheltered outdoor area when the weather is good they will usually continue to flower in mid-spring.
Azalea indica var. simsii should not be in sunlight but prefers diffused light and they are usually planted under trees and other plants. The other important factor is the temperature they prefer cooler temperatures of between 45 to 61ºF or 7 to 16ºC otherwise in warm rooms it dries out the roots and you will see the leaves to start to fall. Keep them moist not wet they love moisture in the soil as well as humidity.
Propagate Azalea indica var. simsii by cuttings of new growths, and keep them moist and humid perhaps by putting it under a plastic cover.
Watch out for spider mites, brown leaves are usually due to soil-borne fungi. Azalea indica var. simsii attracts bees and butterfly.