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Red Azaleas Mollis HybridRhododendron x kosteranum

  • Red Azaleas Mollis Hybrid - Rhododendron x kosteranum bush
Originally developed in Belgium and Holland, the beautiful Mollis hybrid azaleas have been hybridized to be cold-hardy down to -10 degrees. These lush, deciduous shrubs bear spectacular clusters of vibrant red flowers to brighten your home each spring and also provide beautiful fall color.

Hardiness Zones

The red azaleas mollis hybrid can be expected to grow in Hardiness Zones 5–8. View Map

Tree Type

This is a flowering shrub, typically planted for its profusion of flowers.

Mature Size

Red Mollis hybrid azaleas grow to a height of 4–6' and a spread of around 4' 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 is the ideal condition for this shrub, meaning it should get at least 6 hours of direct, unfiltered sunlight each day.

Soil Preference

Red Mollis hybrid azaleas grow in acidic, loamy, moist, rich, sandy, silty loam and well-drained soils.

Attributes

This shrub:
  • Provides beautiful fall color, with the vibrant green leaves turning multicolored as the season changes.
  • Produces large clusters of intense, rosy-red blossoms.
  • Grows in a rounded shape.

History/Lore

Mollis hybrid azaleas originated in Holland and Belgium in the 1870s.