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Formosa AzaleasAzalea indica 'Formosa'

  • Formosa Azalea - Azalea indica Formosa shrub
Hailing from southern India, this evergreen shrub is a true eye-catcher. Large magenta flowers emerge in the spring, and in some areas the plant event has a second bloom in the fall. It is commonly used for a mass planting, specimen, foundation plant, border, or hedge.

If you live in hardiness zones 8–10, the Formosa azaleas would make a standout addition to your landscape.

Hardiness Zones

The formosa azaleas can be expected to grow in Hardiness Zones 8–10. View Map

Tree Type

This shrub is considered both an evergreen shrub and a flowering shrub. It keeps its foliage year-round and blooms in a profusion of spring flowers.

Mature Size

Formosa azaleas grow to a height of 6–8' and a spread of 4–6' at maturity.

Growth Speed Slow Growth Rate

This shrub grows at a slow rate, with height increases of less than 12" per year.

Sun Preference

Full sun and partial shade are best for this shrub, meaning it prefers a minimum of 4 hours of direct, unfiltered sunlight each day.

Soil Preference

Formosa azaleas prefer acidic, moist, well-drained soil but tolerates periodic dry soil once established.


This shrub:
  • Produces 3" funnel-shaped magenta flowers, each with a darker accent blotch, that bloom in the spring. In some areas, the plant will bloom again in the fall.
  • Features elliptical, medium green leaves 1½" in length that persist throughout the year.
  • Grows in a rounded shape.
  • Should be protected from the wind.
  • Works well as a mass planting, specimen, foundation plant, border or hedge.

Wildlife Value

The flowers attract butterflies and bees.


This shrub comes from southern India.