Photo: Hannah RogersCC BY 4.0via iNaturalistresized / cropped
Needle-leaf Triggerplant Plant Care
Stylidium subulatum Hook.f.
Updated · Sources · How we source care data
With delicate, elongated leaves that resemble tiny spears, this plant originates from Australia and New Zealand. Plant collectors are drawn to Stylidium subulatum for its unique method of pollination, where it traps insects on sticky hairs located on its flowers.
Every 3–7 days
Full sun to partial shade
60–80°F
50–70%
At a glance
How do you care for Needle-leaf Triggerplant?
Water Needle-leaf Triggerplant every 3–7 days, letting the top layer of soil dry out between waterings, and give it full sun to partial shade. It prefers temperatures of 60–80°F (16–27°C) and 50–70% humidity. Fertilize it every 2 months during the growing season.
Where Is the Needle-leaf Triggerplant Native To?
What Is the Needle-leaf Triggerplant?
Needle-leaf Triggerplant (Stylidium subulatum) belongs to the Stylidiaceae family within the Stylidium genus. Needle-leaf Triggerplant is native to New Zealand. Needle-leaf Triggerplant is also known as Stylidium aphyllum.
Needle-leaf Triggerplant displays a low rosette, clumping growth habit, reaching up to tall with a spread of approximately . Needle-leaf Triggerplant produces unique trigger-like flowers in various colors.
Leaf size: approximately 1 inches.
How Often Should You Water a Needle-leaf Triggerplant?
Stylidium subulatum requires watering every 3–7 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 3–7 days
Let soil partially dry between waterings
What Light Does the Needle-leaf Triggerplant Need?
Needle-leaf Triggerplant thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Needle-leaf Triggerplant Prefer?
Stylidium subulatum grows best at temperatures of 60–80°F. Needle-leaf Triggerplant prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.
Temperature
60–80°F
Humidity
50–70%
What Soil Mix Works Best for a Needle-leaf Triggerplant?
Well-draining sandy soil mix with high organic content. Good drainage is essential for Needle-leaf Triggerplant to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Needle-leaf Triggerplant?
Feed Needle-leaf Triggerplant 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 Needle-leaf Triggerplant?
Repot every 1-2 years in early spring. 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 Triggerplant?
Needle-leaf Triggerplant can be propagated through seeds, division of rhizomes. Similar propagation techniques also apply to stylidium accedens plant care, which shares the same genus.
Is the Needle-leaf Triggerplant Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Needle-leaf Triggerplant, 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 Triggerplant?
Needle-leaf Triggerplant is susceptible to aphids, spider mites, whiteflies. 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 Triggerplant Need?
Needle-leaf Triggerplant grows outdoors in USDA Zone 8a – 9b. It survives winters down to planting zone 8a. Needle-leaf Triggerplant is native to New Zealand.
Hardiness Zone
Zone 8a – 9b
Keep exploring plants
Needle-leaf Triggerplant 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 Stylidium genus — compare its care with other Stylidium species on PlantoScan.
Stylidium is part of the Stylidiaceae plant family — browse all Stylidiaceae genera and species.
Needle-leaf Triggerplant thrives in bright light and direct sun — see other bright-light plants.
More Stylidium Species
Other Stylidium species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Stylidium subulatum Hook.f., family Stylidiaceae (first published in Handb. N. Zeal. Fl. 1: 168 (1864)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Needle-leaf Triggerplant, 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: Hannah Rogers, CC BY 4.0, iNaturalist — original.
- Hardiness zone: USDA Zone 8a – 9b, 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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