Rhododendron Impeditum Album


Plant Fact File:

  • Plant Type: Evergreen Shrub
  • Common Name: White Dwarf Rhododendron
  • Botanical Name: Rhododendron ‘Impeditum Album’
  • Growth Habit: Compact, mounded
  • Height: 30-60 cm (1-2 feet)
  • Spread: 60-90 cm (2-3 feet)
  • Foliage: Small, glossy, dark green leaves
  • Flower Color: White
  • Flowering Period: Late spring to early summer
  • Hardiness: Fully Hardy
  • Aspect: Partial shade to full sun (prefers dappled shade)
  • Soil Type: Moist, well-draining, acidic soil
  • Uses: Borders, rock gardens, containers, woodland gardens


Rhododendron ‘Impeditum Album’ is a compact evergreen shrub renowned for its diminutive size and pure white flowers. It typically grows to a height of 30-60 cm with a similar spread, making it ideal for smaller gardens, rockeries, or container planting. In late spring to early summer, the shrub produces an abundance of white flowers that contrast beautifully with the glossy dark green foliage.

Key Features:

  • Compact Growth Habit: One of the standout features of Rhododendron ‘Impeditum Album’ is its compact, mounded growth habit. This makes it an excellent choice for smaller gardens, rockeries, or container planting, where it adds a touch of elegance without overwhelming the space. Its moderate size also allows for easy maintenance and versatility in landscaping.
  • Pure White Flowers: The most striking feature of ‘Impeditum Album’ is its pure white flowers, which appear in abundance in late spring to early summer. The flowers are trumpet-shaped and create a stunning contrast against the dark green foliage. Their pristine white color adds brightness and elegance to the garden, making them a popular choice for landscape design.
  • Glossy Foliage: The small, glossy, dark green leaves of ‘Impeditum Album’ provide year-round interest in the garden. The foliage remains evergreen throughout the year, adding color and texture even in the winter months. The glossy leaves catch the light and create a lush backdrop for the delicate white flowers.
  • Easy to Grow: Rhododendron ‘Impeditum Album’ is relatively easy to grow and maintain, provided it is planted in the right conditions. It prefers moist, well-draining, acidic soil and dappled shade, although it can tolerate partial shade to full sun with adequate moisture. Once established, it requires minimal care and is generally resistant to pests and diseases.
  • Versatile Uses: ‘Impeditum Album’ can be used in various ways in the landscape, thanks to its compact size and elegant white flowers. It works well as a border plant, rock garden specimen, or container planting in gardens. It also thrives in woodland gardens, where it adds brightness and charm under the canopy of trees.