Royal Robes Japanese Iris
Iris ensata
EYE-riss en-SAY-tuh
Perennials: Grandma's Garden
Zone
3: -40° to -30°
Min. Temp
Hardy: 28°
This highly diverse group of plants have flowers in virtually every color. All have grassy sword-shaped leaves forming a clump.
Appearance
Summer Foliage
Green
Fall Foliage
Blue-Green
Flower Color
Purple
Blooming Time
Early Summer - Mid Summer
Habit
Upright
Height
3–4 ft
Spread
18–24 in
Form
Iris
Characteristics
Type
Cultivar
Safety
Toxic to Dogs/Cats
Growth Rate
Moderate
Tolerance/Resistance
Cold Hardy
Attracts
Attracts Hummingbirds; Attracts Honeybees & Pollinators
Uses/Placement
Cut Flower
Optimal Growing Conditions
Sun Exposure
Full Sun: 8-12 hrs
Soil Texture
Silty
Soil Drainage
Moderately well-drained
Soil Moisture
Average to Moist
Soil PH
Slightly Acidic: 6.0-6.5
PH Tolerance
Prefers slightly acidic soil
Soil Amendment(s)
Compost
Fertilizer
Moderate Feeder
Fertilizer Formula
Balanced Fertilizer
Fertilizer Timing
Pre-Bloom
Micronutrients
Trace Minerals Beneficial
Care
Care Level
Moderate
Behavior and Propagation
Spreading
Moderate Spreader
Propagation Method
Benefits from Pollinators
Propagation Licensing
Open propagation permitted
Division Timing
Divide After Bloom