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Rhododendron viscosum var. serrulatum

Native Plants

Swamp Azalea

2 Photos


Swamp azalea (Rhododendron viscosum var. serrulatum) offers fragrant white tubular flowers in late summer on an upright, irregularly shaped, multi-stemmed shrub, making it a very nice plant for the back of the garden border. Swamp azalea prefers moist, well-drained, acidic soils in full sun to filtered shade, though it is adaptable to occasional dry periods. In autumn, swamp azalea can develop excellent red fall color. This azalea combines well with numerous plants in the garden including royal fern (Osmunda regalis), cinnamon fern (Osmundastrum cinnamomeuma), woodland phlox (Phlox divaricata), American bugbane (Actaea podocarpa), white-leaved leatherflower (Clematis glaucophylla), great blue lobelia (Lobelia siphilitica), coast leucothoe (Leucothoe axillaris), summer sweet clethra(Clethra alnifolia), and inkberry (Ilex glabra). Zones 4-9. 

More Details

  • Plant Type
  • Sun/Shade Conditions
  • Foliage Character
  • Soil Moisture
  • Flowering Period
  • Soil PH
  • Flower Color
  • Summer Foliage Color
  • Fall Foliage Color
    multi-color, orange, purple, red, yellow 
  • Fruit/Seed Color