Photo: no rights reservedCC0 1.0via iNaturalist
Sinclair's Mosquito Orchid Plant Care
Acianthus sinclairii Hook.f.
Updated · Sources · How we source care data
This orchid species is known for its unique, spiral-shaped leaves that resemble a corkscrew. Originally from Australia and New Zealand, Acianthus sinclairii is highly sought after by plant collectors for its delicate and rare appearance in cultivation.
Every 7–10 days
Bright indirect light
60–75°F
50–70%
At a glance
How do you care for Sinclair's Mosquito Orchid?
Water Sinclair's Mosquito Orchid every 7–10 days, letting the top layer of soil dry out between waterings, and give it bright indirect light. It prefers temperatures of 60–75°F (16–24°C) and 50–70% humidity. Fertilize it every month during the growing season.
Where Is the Sinclair's Mosquito Orchid Native To?
What Is the Sinclair's Mosquito Orchid?
Sinclair's Mosquito Orchid (Acianthus sinclairii) belongs to the Orchidaceae family within the Acianthus genus. Sinclair's Mosquito Orchid is native to New Zealand. Sinclair's Mosquito Orchid is also known as Mosquito Orchid.
Sinclair's Mosquito Orchid displays a compact, clumping growth habit, reaching up to tall with a spread of approximately . Sinclair's Mosquito Orchid produces small, delicate flowers in various colors.
Leaf size: approximately 2 inches.
How Often Should You Water a Sinclair's Mosquito Orchid?
Acianthus sinclairii requires watering every 7–10 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.
Watering Frequency
Every 7–10 days
Let soil partially dry between waterings
What Light Does the Sinclair's Mosquito Orchid Need?
Sinclair's Mosquito Orchid thrives in bright indirect light. Avoid placing Sinclair's Mosquito Orchid in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Bright indirect light
What Temperature and Humidity Does the Sinclair's Mosquito Orchid Prefer?
Acianthus sinclairii grows best at temperatures of 60–75°F. Sinclair's Mosquito Orchid prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.
Temperature
60–75°F
Humidity
50–70%
What Soil Mix Works Best for a Sinclair's Mosquito Orchid?
Well-draining orchid mix with bark and perlite. Good drainage is essential for Sinclair's Mosquito Orchid to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Sinclair's Mosquito Orchid?
Feed Sinclair's Mosquito Orchid every month during the growing season (spring and summer) with a balanced fertilizer diluted to the strength on the label.
Pause feeding in autumn and winter, when growth slows, and never fertilize dry soil — water first.
Fertilizing
Every month
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
How Do You Repot a Sinclair's Mosquito 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 Sinclair's Mosquito Orchid?
Sinclair's Mosquito Orchid can be propagated through division, keiki propagation. Similar propagation techniques also apply to clasping mosquito orchid plant care, which shares the same genus.
Is the Sinclair's Mosquito Orchid Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Sinclair's Mosquito 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 Sinclair's Mosquito Orchid?
Sinclair's Mosquito 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.
What USDA Hardiness Zone Does the Sinclair's Mosquito Orchid Need?
Sinclair's Mosquito Orchid grows outdoors in USDA Zone 9a – 10b. It survives winters down to planting zone 9a. Sinclair's Mosquito Orchid is native to New Zealand. In cooler regions, grow Sinclair's Mosquito Orchid as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 9a – 10b
Keep exploring plants
Sinclair's Mosquito 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 Acianthus genus — compare its care with other Acianthus species on PlantoScan.
Acianthus is part of the Orchidaceae plant family — browse all Orchidaceae genera and species.
Sinclair's Mosquito Orchid thrives in bright light and direct sun — see other bright-light plants.
Related Plant Care Guides
Closely related plants with similar care requirements:
Sources
- Scientific name & taxonomy: Acianthus sinclairii Hook.f., family Orchidaceae (first published in Fl. Nov.-Zel. 1: 246 (1853)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Sinclair's Mosquito 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.
- Photo: Public domain, CC0 1.0, iNaturalist — original.
- Hardiness zone: USDA Zone 9a – 10b, estimated from the plant's typical growing conditions.
- 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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