Euphorbia Silver Swan


Plant Fact File:

  • Plant Type: Herbaceous Perennial
  • Common Name: Euphorbia ‘Silver Swan’
  • Botanical Name: Euphorbia characias ‘Silver Swan’
  • Mature Height: 60-90 centimeters (24-36 inches)
  • Spread: 60-90 centimeters (24-36 inches)
  • Growth Habit: Clumping, Upright
  • Foliage: Variegated, Silvery-Gray
  • Flowers: Creamy-White
  • Flowering Period: Spring to Early Summer
  • Hardiness: Fully Hardy
  • Aspect: Full Sun to Partial Shade
  • Soil Type: Well-Draining, Sandy, Loamy
  • Uses: Border Plant, Container Plant, Accent Plant


Euphorbia ‘Silver Swan’ (Euphorbia characias ‘Silver Swan’) is a striking herbaceous perennial prized for its variegated foliage and delicate flowers. This cultivar of spurge features clumping, upright growth, with silvery-gray leaves edged in creamy-white. In spring to early summer, it produces clusters of small, creamy-white flowers atop tall stems, adding a touch of elegance to the garden.

Key Features:

  • Variegated Foliage: One of the main attractions of Euphorbia ‘Silver Swan’ is its striking foliage. The leaves are lance-shaped and densely packed along the stems, with a silvery-gray coloration and creamy-white margins. This variegation adds visual interest to the plant even when it is not in bloom.
  • Delicate Flowers: In spring to early summer, Euphorbia ‘Silver Swan’ produces clusters of small, creamy-white flowers held atop tall stems. These flowers have a delicate, airy appearance and provide a charming contrast to the bold foliage. They also attract pollinators such as bees and butterflies to the garden.
  • Compact Growth Habit: ‘Silver Swan’ forms a compact clump of foliage, making it well-suited for use as a border plant, container plant, or accent plant in the garden. It adds texture, color, and vertical interest to mixed borders, rock gardens, and cottage-style plantings.
  • Low Maintenance: Euphorbia ‘Silver Swan’ is a low-maintenance perennial that thrives in a wide range of growing conditions. It is drought-tolerant once established and requires minimal care beyond regular watering and occasional pruning to remove spent flowers or damaged foliage.
  • Versatile Uses: This versatile plant can be used in various ways in the landscape. Plant it in sunny borders, mixed perennial beds, or containers to add texture and color to your garden design. It also combines well with other spring-blooming perennials and annuals, such as tulips, daffodils, and pansies.