Photo: Jerry CooperCC BY 4.0via iNaturalistresized / cropped
Potato Orchid Plant Care
Gastrodia cunninghamii Hook.f.
Updated · Sources · How we source care data
This unique plant from Australia features striking leafless stems that grow up to 1 meter tall. Gastrodia cunninghamii is a rare, parasitic orchid that originates from the wet forests of Tasmania. Plant collectors are drawn to its mysterious appearance and fascinating growth habit, making it a prized addition to any collection.
Every 7–14 days
Low to medium indirect light
60–75°F
60–80%
At a glance
How do you care for Potato Orchid?
Water Potato Orchid every 7–14 days, letting the top layer of soil dry out between waterings, and give it low to medium indirect light. It prefers temperatures of 60–75°F (16–24°C) and 60–80% humidity. Fertilize it every 2 months during the growing season.
Where Is the Potato Orchid Native To?
What Is the Potato Orchid?
Potato Orchid (Gastrodia cunninghamii) belongs to the Orchidaceae family within the Gastrodia genus. Potato Orchid is native to New Zealand.
Potato Orchid displays a terrestrial, mycoheterotrophic growth habit, reaching up to 1 ft tall with a spread of approximately . Potato Orchid produces small, inconspicuous flowers with unique pollination mechanisms.
How Often Should You Water a Potato Orchid?
Gastrodia cunninghamii requires watering every 7–14 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 7–14 days
Let soil partially dry between waterings
What Light Does the Potato Orchid Need?
Potato Orchid thrives in low to medium indirect light. Avoid placing Potato Orchid in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Low to medium indirect light
What Temperature and Humidity Does the Potato Orchid Prefer?
Gastrodia cunninghamii grows best at temperatures of 60–75°F. Potato Orchid prefers humidity levels of 60–80%. A pebble tray or humidifier helps maintain adequate moisture around the plant.
Temperature
60–75°F
Humidity
60–80%
What Soil Mix Works Best for a Potato Orchid?
Well-draining orchid mix with bark and sphagnum moss. Good drainage is essential for Potato Orchid to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Potato Orchid?
Feed Potato Orchid every 2 months 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 2 months
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
How Do You Repot a Potato 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 Potato Orchid?
Potato Orchid can be propagated through division of pseudobulbs, back bulbs, or keikis. Similar propagation techniques also apply to tianma plant care, which shares the same genus.
Is the Potato Orchid Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Potato 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 Potato Orchid?
Potato 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 Potato Orchid Need?
Potato Orchid grows outdoors in USDA Zone 8b – 10b. It survives winters down to planting zone 8b. Potato Orchid is native to New Zealand.
Hardiness Zone
Zone 8b – 10b
Keep exploring plants
Potato 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 Gastrodia genus — compare its care with other Gastrodia species on PlantoScan.
Gastrodia is part of the Orchidaceae plant family — browse all Orchidaceae genera and species.
Potato Orchid copes with lower light than most plants — browse the full list of low-light plants.
More Gastrodia Species
Other Gastrodia species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Gastrodia cunninghamii Hook.f., family Orchidaceae (first published in Fl. Nov.-Zel. 1: 251 (1853)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Potato 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: Jerry Cooper, CC BY 4.0, iNaturalist — original.
- Hardiness zone: USDA Zone 8b – 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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