Carex omiana Plant Care
Carex omiana Franch. & Sav.
Updated · Sources · How we source care data
Carex omiana, also known as suwon sedge, is a tussock-forming species of perennial sedge in the family Cyperaceae. It is native to north eastern parts of China, Japan and the Kuril Islands.
Part shade to full shade
At a glance
How do you care for Carex omiana?
Carex omiana grows best in part shade to full shade.
What Is the Carex omiana?
Carex omiana (Carex omiana) belongs to the Cyperaceae family within the Carex genus. Carex omiana is native to north eastern parts of China, Japan and the Kuril Islands.
Carex omiana displays a grass-like clumping growth habit, reaching up to tall with a spread of approximately . Carex omiana produces inconspicuous brown or green spikes.
What Light Does the Carex omiana Need?
Carex omiana thrives in part shade to full shade. Avoid placing Carex omiana in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Part shade to full shade
What Soil Mix Works Best for a Carex omiana?
Moist, well-draining soil with high organic matter content. Good drainage is essential for Carex omiana to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Carex omiana?
Divide and repot every 2-3 years in spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.
How Do You Propagate a Carex omiana?
Carex omiana can be propagated through division, seed. Similar propagation techniques also apply to white-leaved sedge plant care, which shares the same genus.
Is the Carex omiana Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Carex omiana, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.
This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.
See all plants toxic to cats and plants toxic to dogs.
What Pests and Diseases Affect the Carex omiana?
Carex omiana is susceptible to aphids, spider mites. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.
Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.
Keep exploring plants
Carex omiana is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.
It belongs to the Carex genus — compare its care with other Carex species on PlantoScan.
Carex is part of the Cyperaceae plant family — browse all Cyperaceae genera and species.
Carex omiana copes with lower light than most plants — browse the full list of low-light plants.
More Carex Species
Other Carex species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Carex omiana Franch. & Sav., family Cyperaceae (first published in Enum. Pl. Jap. 2: 554 (1878)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Carex omiana, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
- Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.
Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.
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