Rhododendron ‘Glacier’

evergreen azalea

  • © Sally Perkins

Outstanding Qualities

Rhododendron 'Glacier' is one of the most highly rated evergreen azaleas to come out of the US Department of Agriculture's Glenn Dale breeding program. Large single shining white flowers cover this vigorous grower. Each blossom radiates with a slight green flush emanating from the throat. This is a large grower becoming a stately upright shrub with graceful spreading tiered branching clothed with dark green lustrous foliage.

Quick Facts

Plant Type: shrub

Foliage Type: evergreen

Plant Height: 3 ft. 0 in. (0.91 meters)

Plant Width/Spread: 3 ft. 0 in. (0.91 meters)

Plant Height-Mature: 5 ft. 0 in. (1.52 meters)

Plant Width-Mature: 5 ft. 0 in. (1.52 meters)

Hardiness: USDA Zones 6 to 9

Flower Color: white

Sun/Light Exposure: full sun to light or open shade

Water Requirements: regular watering

Seasonal Interest: gleaming white spring flowers

Wildlife Associations: bees, hummingbirds

Colors & Combos

Great Plant Combinations: Use it in bright woodlands or under tall deciduous trees. The bold silver foliage of Brunnera macrophylla 'Jack Frost' or the silver spotted leaves of pulmonaria would look great with the flowers and foliage of this azalea Plant with dogwoods to echo the tiered branching pattern of the azalea. Combining with ferns, epimediums, primrose, or wood anemone (Anemone nemorosa) completes a spring wonderland.

Great Color Contrasts: cream, silver, gold

Great Color Partners: bronze, dark green, chartreuse

Culture Notes
This azalea is easy to grow in the Pacific Northwest. Plant it in rich well-drained or sandy soil in a location with full sun to light or open shade. Azaleas are shallow-rooted plants requiring regular watering during dry weather. Faded flowers often drop off or are quickly covered by new growth. Almost no pruning is needed to keep azaleas looking good. Adult root weevils can chew on their leaves, but this is less of a problem on plants that receive more light and regular watering.