Siberian Iris Black Joker

Siberian Iris 'Black Joker' (Iris sibirica 'Black Joker') is an exquisite herbaceous perennial celebrated for its striking, multi-tonal blooms and graceful form. This captivating variety is prized for its unique colouration, with deep purple falls (lower petals) elegantly edged in golden-yellow, topped by soft lavender-blue standards (upper petals) that are accented with vibrant yellow signals. Together, these intricate details create a bold yet refined display that brings dramatic contrast and sophistication to any garden.

Blooming in late spring to early summer, 'Black Joker' thrives in a variety of settings, from cottage gardens to modern landscapes. Unlike Bearded Irises, Siberian Irises are renowned for their slender, upright growth and fine-textured foliage, which adds a soft, flowing elegance to planting schemes even after the flowers have faded. The plant’s robust nature and tolerance of damp soils make it an excellent choice for borders, waterside planting, or areas with less-than-ideal drainage. Easy to grow and low maintenance, 'Black Joker' is a reliable performer that will reward gardeners with years of stunning displays.

Learn how to grow Iris

• Scientific Name: Iris sibirica 'Black Joker'
• Common Name: Siberian Iris 'Black Joker'
• Growth Habit: Upright, clump-forming perennial with slender foliage
• Flower Features:
• Deep purple falls edged with golden-yellow
• Lavender-blue standards accented with vivid yellow signals
• Intricate, multi-tonal blooms that exude elegance
• Bloom Time: Late spring to early summer
• Foliage: Fine-textured, grass-like, green leaves that remain attractive after flowering
• Height: Reaches 60–90 cm
• Spread: Forms clumps approximately 45–60 cm wide
• Sunlight Requirements: Prefers full sun to partial shade
• Soil Preference: Thrives in moist, well-drained soils; tolerates damp conditions and clay soils
• Garden Use:
• deal for borders, cottage gardens, and waterside planting
• Adds vertical interest and contrast to mixed beds or naturalistic planting schemes
• Maintenance:
• Low maintenance; requires little care beyond occasional division of clumps
• Cut back foliage in late autumn or early spring for a tidy appearance
• Wildlife Value: Attracts bees and other pollinators while providing habitat for garden-friendly wildlife
• Supplied As: Bare Roots
• Dispatch: Spring (March/April)
• We ship from: London