Rhododendron decorum
Azalea
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Azalea (Rhododendron decorum) - Description
Rhododendron decorum (大白杜鹃) is a rhododendron species native to Myanmar and Guizhou, Sichuan, Xizang, and Yunnan, China, where it grows at altitudes of 1000–3300 meters. It is a shrub or small tree that grows to 1–6 m in height, with leathery leaves that are oblong, oblong-ovate or oblong-elliptic, 5–19 by 3–11 cm in size. Flowers are white to pale pink.
Azalea (Rhododendron decorum) - Blooming
Blooms in early Spring. There are many varieties of Rhododendrons and Azaleas that come in many different colors and styles.
Azalea (Rhododendron decorum) - Growth
Rhododendrons do best with filtered sunlight. Generally, these plants will need more protection from the sun as the climate gets sunnier and hotter. They do best in cooler, temperate climates that have sufficient rainfall.
Azalea (Rhododendron decorum) - Planting
Sow seeds in soil that is acidic as soon as the seeds are ripe or in early spring. Maintain the temperature between 55 and 65°F (18°C). It should be noted that Rhododendrons readily hybridize and seeds collected from your garden may produce offspring that do not closely resemble the parents.
Azalea (Rhododendron decorum) - Pest
Prone to whitefly, lace bugs, scale, caterpillars and aphids. Susceptible to powdery mildew, leafy gall and root rot.
Azalea (Rhododendron decorum) - Interesting facts
The name Rhododendron literally translates to "rose tree". The species R. catawbiense is found throughout the Appalachian Mountains. Not only is it the state flower of West Virginia, it is also on the state flag.
Azalea (Rhododendron decorum) - Soil and irrigation
Need fast-draining soils that are rich and acidic. Does best if the soil also retains sufficient quantities of water (amend soil with organic matter to do so). These plants need more air in the root zone than most plants do. Plants that are yellowing and that have leaves that are dropping are most likely sitting in water and the roots are drowning.
