Iris sibirica 'On Mulberry Street'

Siberian iris

Eventual height & spread

Iris sibirica 'On Mulberry Street'

Siberian iris

  • 9cm pot
  • £12.99
  • available to order from late autumn
Delivery options
  • Standard £5.99
  • Position: full sun
  • Soil: moderately fertile, moist but well-drained soil
  • Rate of growth: average
  • Flowering period: May to June
  • Hardiness: fully hardy


This striking Siberian iris produces midseason blooms with a captivating mix of colour and texture, making it a standout in any border or waterside planting, with upright, grass-like foliage forming tidy clumps that provide structure and interest even when the flowers fade.

The flowers of Iris sibirica 'On Mulberry Street' feature pale purple standards flecked with red-violet veining, with falls that are a dramatic blend of blue heavily dappled and veined with violet in the centre. Wide, slightly ruffled petals enhance the exotic, gem-like appearance, and the blooms carry a subtle sweet fragrance that adds sensory appeal.

Ideal for full sun to part shade, this deer-resistant perennial adapts to a variety of soil types and provides bold, early-season colour. Its long-lived nature and upright habit make it perfect for creating structure in borders, edging paths, or complementing water features.


  • Garden care:
    Plant in soil that has been improved with well-rotted manure or garden compost and do not allow to dry out, particularly as the plant is getting established. If grown in a container, it will need dividing and repotting every couple of years in spring.

    Remove the stems after flowering from the base as this will concentrate the plant's energy into producing new rhizomes. Divide and replant about every three years.
    • Humans/Pets: Harmful if eaten