Tetroncium magellanicum Plant Care
Tetroncium magellanicum Willd.
Updated · Sources · How we source care data
Tetroncium is a genus of plants in the Juncaginaceae described as a genus in 1808. It contains only one known species, Tetroncium magellanicum, known from a few sub-Antarctic islands: Tierra Del Fuego, Falkland Islands, and Gough Island.
Every 7–10 days
Partial to full sun
60–80°F
50–70%
At a glance
How do you care for Tetroncium magellanicum?
Water Tetroncium magellanicum every 7–10 days, letting the top layer of soil dry out between waterings, and give it partial to full sun. It prefers temperatures of 60–80°F (16–27°C) and 50–70% humidity. Fertilize it every 6 months during the growing season.
What Is the Tetroncium magellanicum?
Tetroncium magellanicum (Tetroncium magellanicum) belongs to the Juncaginaceae family within the Tetroncium genus.
Tetroncium magellanicum displays a clumping perennial growth habit, reaching up to 1.5 ft tall with a spread of approximately 1.5 ft. Tetroncium magellanicum produces small clusters of white or pink flowers.
Leaf size: approximately 8 inches.
How Often Should You Water a Tetroncium magellanicum?
Tetroncium magellanicum 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 Tetroncium magellanicum Need?
Tetroncium magellanicum thrives in partial to full sun.
Light Requirement
Partial to full sun
What Temperature and Humidity Does the Tetroncium magellanicum Prefer?
Tetroncium magellanicum grows best at temperatures of 60–80°F. Tetroncium magellanicum 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 Tetroncium magellanicum?
Rich, loamy soil with good drainage. Good drainage is essential for Tetroncium magellanicum to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Tetroncium magellanicum?
Feed Tetroncium magellanicum every 6 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 6 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 Tetroncium magellanicum?
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 Tetroncium magellanicum?
Tetroncium magellanicum can be propagated through division, seeds.
Is the Tetroncium magellanicum Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Tetroncium magellanicum, 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 Tetroncium magellanicum?
Tetroncium magellanicum is susceptible to aphids, spider mites, leafhoppers. 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 Tetroncium magellanicum Need?
Tetroncium magellanicum grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. In cooler regions, grow Tetroncium magellanicum as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13a
Keep exploring plants
Tetroncium magellanicum 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 Tetroncium genus — compare its care with other Tetroncium species on PlantoScan.
Tetroncium is part of the Juncaginaceae plant family — browse all Juncaginaceae genera and species.
Tetroncium magellanicum 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: Tetroncium magellanicum Willd., family Juncaginaceae (first published in Mag. Neuesten Entdeck. Gesammten Naturk. Ges. Naturf. Freunde Berlin 2: 17 (1808)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Tetroncium magellanicum, 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.
- Hardiness zone: USDA Zone 13a, calculated from the plant's minimum temperature.
- 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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