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PlantSnap
Plant Care
Pointed-lobe iris
(Iris acutiloba)
Also Known As
Pointed-lobe iris, Sharp-leaved iris, Siberian iris, Korean iris
About This Plant
Iris acutiloba is a species of flowering plant in the family Iridaceae, native to Japan. It is a rhizomatous perennial with narrow, grass-like leaves and showy, violet-blue flowers with yellow markings.
Plant Care Instructions
Outdoor Size Range
24-36 inches (61-91 cm) tall and 18-24 inches (46-61 cm) wide
Light Requirements
Iris acutiloba prefers full sun but can tolerate partial shade.
Humidity Needs
It can tolerate a wide range of humidity levels, but it prefers moderate humidity.
Fertilizing Schedule
Fertilize once in the spring with a balanced fertilizer.
Pruning Guidelines
Remove spent flowers and yellowing leaves to keep the plant looking tidy.
Common Pests and Diseases
Iris borer and thrips can be a problem for this plant species.
Indoor Size Range
Not suitable for indoor growth
Watering Schedule
It requires regular watering, especially during the growing season, but make sure the soil is well-draining to avoid waterlogging.
Temperature Range
It can tolerate a wide range of temperatures, but it prefers cool to moderate temperatures.
Growing Season
Late spring to early summer is the growing season for Iris acutiloba.
Growing Difficulty Level
Iris acutiloba is moderately difficult to grow due to its specific growing requirements and susceptibility to pests.
USDA Hardiness Zones
Iris acutiloba is hardy in USDA zones 5-9.
Did You Know?
In Japan, Iris acutiloba is used in traditional medicine to treat various ailments, including diarrhea and fever.
