Iris henryana
A beardless iris from China with narrow foliage and delicate flowers. Forms slowly spreading clumps by rhizomes. The flowers feature intricate veining patterns typical of Pacific Coast iris relatives. Prefers woodland edge conditions with some moisture.
Thrives in part shade to shade with humus-rich soil. Native to Chinese mountain forests suggesting preference for cooler conditions. The delicate flowers and narrow foliage suit naturalistic woodland plantings. Less commonly grown than other iris groups but garden-worthy for appropriate sites.
Growing Conditions
Light: part shade to shade
Moisture: average
Soil: humus-rich moisture-retentive
Hardiness zone: 6
Maintenance: low to moderate
Size & Habit
Height (cm): 40
Spread (cm): 35
Habit: clumping
Seasonal Interest
Flowering period: May–June
Seasonal interest: spring bloom; delicate flowers; narrow foliage
Foliage: green
Flower: lavender blue
Ecology & Notes
Wildlife value: pollinators
Deer/Rabbit resistance: yes
Habitat: woodland gardens; shade borders; naturalistic plantings
Features: narrow foliage; delicate flowers; intricate veining; slowly spreading; Chinese mountain native; woodland iris
Notes: Chinese mountain native; prefers part shade; humus-rich soil; less common; slowly spreading