White Onion Orchid Plant Care
Microtis alba R.Br.
Updated · Sources · How we source care data
Microtis alba, commonly known as white mignonette orchid or slender onion-orchid, is a species of orchid endemic to the south-west of Western Australia. It has a single hollow, onion-like leaf and up to sixty small, green and white flowers with a strong musky fragrance.
Bright indirect light
At a glance
How do you care for White Onion Orchid?
White Onion Orchid grows best in bright indirect light.
Where Is the White Onion Orchid Native To?
What Is the White Onion Orchid?
White Onion Orchid (Microtis alba) belongs to the Orchidaceae family within the Microtis genus. White Onion Orchid is native to the south-west of Western Australia. White Onion Orchid is also known as White Onion-orchid.
White Onion Orchid displays a clumping, terrestrial growth habit, reaching up to tall with a spread of approximately . White Onion Orchid produces small, delicate flowers in various colors.
What Light Does the White Onion Orchid Need?
White Onion Orchid thrives in bright indirect light. Avoid placing White 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 White Onion Orchid?
Well-draining orchid mix with bark and perlite. Good drainage is essential for White Onion Orchid to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a White 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 White Onion Orchid?
White 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 White Onion Orchid Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list White 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 White Onion Orchid?
White 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
White 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.
White 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 alba R.Br., family Orchidaceae (first published in Prodr. Fl. Nov. Holland. : 321 (1810)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list White 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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