Black Joker Siberian iris
Iris sibirica 'Black Joker'
USDA zones3 to 9
SunHandles full sun to partial sun
WaterHandles moderate to wet soil
Size2 to 4 feet tall8 to 12 inches wide
- Growth rate
- Moderate
- Habit
- Clumping
- Bloom season
- Spring, summer
- Soil types
- Sand, loam, clay
Garden uses
Attracts
Notes
'Black Joker' Siberian iris (Iris sibirica 'Black Joker') is a perennial for borders and shade gardens. It is hardy to USDA zone 3, or down to -40°F (-40°C). This plant likes full or part sun and average to wet, sandy, loamy, or clay soil. It forms a clump that grows at a moderate pace and reaches 24 to 48 inches tall. Blooms open in spring and again in summer, and butterflies visit them.
Pairs well with Hosta, Royal fern, Gooseneck loosestrife, and Carlton daffodil.