Common Onion Orchid Plant Care
Microtis unifolia Rchb.f.
Updated · Sources · How we source care data
Microtis unifolia, commonly known as the common onion orchid, is a species of orchid occurring from south China to Japan, Malesia, and Australasia to the Southwest Pacific. It has a single green leaf and up to one hundred small green or yellowish-green flowers.
Bright indirect light
At a glance
How do you care for Common Onion Orchid?
Common Onion Orchid grows best in bright indirect light.
What Is the Common Onion Orchid?
Common Onion Orchid (Microtis unifolia) belongs to the Orchidaceae family within the Microtis genus. Common Onion Orchid is also known as Tall Onion Orchid.
Common Onion Orchid displays a clumping, terrestrial growth habit, reaching up to tall with a spread of approximately . Common Onion Orchid produces small, delicate flowers in various colors.
What Light Does the Common Onion Orchid Need?
Common Onion Orchid thrives in bright indirect light. Avoid placing Common Onion Orchid in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Bright indirect light
What Soil Mix Works Best for a Common Onion Orchid?
Well-draining orchid mix with bark and perlite. Good drainage is essential for Common Onion Orchid to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Common Onion Orchid?
Repot every 1-2 years after flowering. 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 Common Onion Orchid?
Common Onion Orchid can be propagated through division, keiki propagation. Similar propagation techniques also apply to few-flowered mignonette orchid plant care, which shares the same genus.
Is the Common Onion Orchid Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Common Onion Orchid, 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 Common Onion Orchid?
Common Onion Orchid is susceptible to aphids, scale insects, 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
Common Onion Orchid 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 Microtis genus — compare its care with other Microtis species on PlantoScan.
Microtis is part of the Orchidaceae plant family — browse all Orchidaceae genera and species.
Common Onion Orchid thrives in bright light and direct sun — see other bright-light plants.
More Microtis Species
Other Microtis species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Microtis unifolia Rchb.f., family Orchidaceae (first published in Beitr. Syst. Pflanzenk. : 62 (1871)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Common Onion Orchid, 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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