Photo: Mark CliffCC BY 4.0via iNaturalistresized / cropped
Red-stemmed Conostylis Plant Care
Conostylis androstemma F.Muell.
Updated · Sources · How we source care data
Conostylis androstemma is a striking plant known for its unique needle-like leaves that form dense clumps. Originating from Australia, this plant is popular among enthusiasts for its drought tolerance and ability to thrive in sandy or rocky soils.
Every 7–14 days
Full sun to partial shade
50–80°F
40–60%
At a glance
How do you care for Red-stemmed Conostylis?
Water Red-stemmed Conostylis every 7–14 days, letting the top layer of soil dry out between waterings, and give it full sun to partial shade. It prefers temperatures of 50–80°F (10–27°C) and 40–60% humidity. Fertilize it every month during the growing season.
Where Is the Red-stemmed Conostylis Native To?
What Is the Red-stemmed Conostylis?
Red-stemmed Conostylis (Conostylis androstemma) belongs to the Haemodoraceae family within the Conostylis genus. Red-stemmed Conostylis is native to the south-west of Western Australia.
Red-stemmed Conostylis displays a low rosette, clumping growth habit, reaching up to 1 ft tall with a spread of approximately 1 ft. Red-stemmed Conostylis produces small yellow flowers in clusters.
Leaf size: approximately 6 inches.
How Often Should You Water a Red-stemmed Conostylis?
Conostylis androstemma 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 Red-stemmed Conostylis Need?
Red-stemmed Conostylis thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Red-stemmed Conostylis Prefer?
Conostylis androstemma grows best at temperatures of 50–80°F. Red-stemmed Conostylis prefers humidity levels of 40–60%.
Temperature
50–80°F
Humidity
40–60%
What Soil Mix Works Best for a Red-stemmed Conostylis?
Well-draining sandy soil mix with some organic matter. Good drainage is essential for Red-stemmed Conostylis to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Red-stemmed Conostylis?
Feed Red-stemmed Conostylis 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 Red-stemmed Conostylis?
Repot every 2-3 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 Red-stemmed Conostylis?
Red-stemmed Conostylis can be propagated through seeds, division of rhizomes. Similar propagation techniques also apply to prickly conostylis plant care, which shares the same genus.
Is the Red-stemmed Conostylis Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Red-stemmed Conostylis, 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 Red-stemmed Conostylis?
Red-stemmed Conostylis 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 Red-stemmed Conostylis Need?
Red-stemmed Conostylis grows outdoors in USDA Zone 9b – 11a. It survives winters down to planting zone 9b. Red-stemmed Conostylis is native to the south-west of Western Australia. In cooler regions, grow Red-stemmed Conostylis as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 9b – 11a
Keep exploring plants
Red-stemmed Conostylis 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 Conostylis genus — compare its care with other Conostylis species on PlantoScan.
Conostylis is part of the Haemodoraceae plant family — browse all Haemodoraceae genera and species.
Red-stemmed Conostylis thrives in bright light and direct sun — see other bright-light plants.
More Conostylis Species
Other Conostylis species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Conostylis androstemma F.Muell., family Haemodoraceae (first published in Fragm. 8: 19 (1873)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Red-stemmed Conostylis, 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: Mark Cliff, CC BY 4.0, iNaturalist — original.
- Hardiness zone: USDA Zone 9b – 11a, 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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