Photo: Eamonn CulhaneCC BY 4.0via iNaturalistresized / cropped
Needle-leaf Greenhood Plant Care
Pterostylis aciculiformis (Nicholls) M.A.Clem. & D.L.Jones
Updated · Sources · How we source care data
Pterostylis aciculiformis, also known as the Needle-leaf Greenhood, is a unique orchid species known for its needle-like foliage and striking green color. This plant is native to Australia and can be found in damp forests and woodlands.
Every 7–14 days
Bright indirect light
60–75°F
50–70%
At a glance
How do you care for Needle-leaf Greenhood?
Water Needle-leaf Greenhood every 7–14 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 Needle-leaf Greenhood Native To?
What Is the Needle-leaf Greenhood?
Needle-leaf Greenhood (Pterostylis aciculiformis) belongs to the Orchidaceae family within the Pterostylis genus. Needle-leaf Greenhood is native to south-eastern Australia.
Needle-leaf Greenhood displays a low rosette, clumping growth habit, reaching up to tall with a spread of approximately . Needle-leaf Greenhood produces unique, intricate orchid-like flowers.
Leaf size: approximately 4 inches.
How Often Should You Water a Needle-leaf Greenhood?
Pterostylis aciculiformis 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 Needle-leaf Greenhood Need?
Needle-leaf Greenhood thrives in bright indirect light. Avoid placing Needle-leaf Greenhood in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Bright indirect light
What Temperature and Humidity Does the Needle-leaf Greenhood Prefer?
Pterostylis aciculiformis grows best at temperatures of 60–75°F. Needle-leaf Greenhood 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 Needle-leaf Greenhood?
Well-draining orchid mix with bark and perlite. Good drainage is essential for Needle-leaf Greenhood to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Needle-leaf Greenhood?
Feed Needle-leaf Greenhood 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 Needle-leaf Greenhood?
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 Needle-leaf Greenhood?
Needle-leaf Greenhood can be propagated through division, seed sowing. Similar propagation techniques also apply to abrupt greenhood plant care, which shares the same genus.
Is the Needle-leaf Greenhood Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Needle-leaf Greenhood, 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 Needle-leaf Greenhood?
Needle-leaf Greenhood is susceptible to aphids, spider mites, scale insects. 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 Needle-leaf Greenhood Need?
Needle-leaf Greenhood grows outdoors in USDA Zone 9a – 10b. It survives winters down to planting zone 9a. Needle-leaf Greenhood is native to south-eastern Australia. In cooler regions, grow Needle-leaf Greenhood as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 9a – 10b
Keep exploring plants
Needle-leaf Greenhood 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 Pterostylis genus — compare its care with other Pterostylis species on PlantoScan.
Pterostylis is part of the Orchidaceae plant family — browse all Orchidaceae genera and species.
Needle-leaf Greenhood thrives in bright light and direct sun — see other bright-light plants.
More Pterostylis Species
Other Pterostylis species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Pterostylis aciculiformis (Nicholls) M.A.Clem. & D.L.Jones, family Orchidaceae (first published in Austral. Orchid Res. 1: 118 (1989)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Needle-leaf Greenhood, 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: Eamonn Culhane, CC BY 4.0, 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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