Landscape Plants of the Upper Midwest

Northern Lights Azaleas

{Picture of Northern Lights Azaleas}

Plant Information

  • Scientific Name: Rhododendron x Northern Lights Play audio of plant name
  • Family: Azalea
  • Parent: Rhododendron (Azalea) species and hybrids
  • Related Cultivars:

    Rhododendron x 'Gibraltar'
    Rhododendron x 'Toucan'
    Rhododendron dauricum 'Madison Snow'
    Rhododendron mucronulatum 'Cornell Pink'
    Rhododendron prinophyllum
    Rhododendron schlippenbachii
    Rhododendron x 'Jane Abbott'

  • Zone: 3
  • Plant Size: 5-6'
  • Habit: Upright Oval
  • Culture:

    Rhododendrons in bloom are among the most striking and beautiful of all plants. They are however, fastidious about their cultural requirements: 1

  • Notes:

    Various cultivars ranging in flower color from rose, to pink, to white. Hardy to approximately -40¡F. Deciduous.

  • Rhododendrons :

    Rhododendrons are commonly divided into two general groups: 1. Azaleas, which are mainly deciduous with funnel-shaped flowers contained 5 stamens 2. Rhododendrons, which are mainly evergreen with bell-shaped flowers containing 10 or more stamens.

  • Pruning:Pruning animation

    Renewal pruning is accomplished by removing the largest, oldest stems (generally 1/4 to 1/3 of the total stems) as close to the ground as possible. This will stimulate new shoots to develop below the cuts which will fill in the plant creating a more dense and pleasing habit.

    Renewal pruning should be done when the plant is dormant, late fall to early spring.

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Landscape Plants of the Upper Midwest

Bill Hoch, Associate Professor
Montana State University

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