Plagiolirion horsmannii Plant Care
Plagiolirion horsmannii Baker
Updated · Sources · How we source care data
Plagiolirion is a monotypic genus in the family Amaryllidaceae endemic to Colombia. It has only one known species, Plagiolirion horsmannii, which is rare in the wild and was thought to be extinct until it was rediscovered in the Río Cauca Valley in 1989.
Every 7–10 days
Partial shade to full sun
50–75°F
40–60%
At a glance
How do you care for Plagiolirion horsmannii?
Water Plagiolirion horsmannii every 7–10 days, letting the top layer of soil dry out between waterings, and give it partial shade to full sun. It prefers temperatures of 50–75°F (10–24°C) and 40–60% humidity. Fertilize it every 6 months during the growing season.
Where Is the Plagiolirion horsmannii Native To?
What Is the Plagiolirion horsmannii?
Plagiolirion horsmannii (Plagiolirion horsmannii) belongs to the Amaryllidaceae family within the Plagiolirion genus. Plagiolirion horsmannii is native to Colombia.
Plagiolirion horsmannii displays a clumping perennial growth habit, reaching up to 1.5 ft tall with a spread of approximately 1 ft. Plagiolirion horsmannii produces small star-shaped white flowers in clusters.
Leaf size: approximately 8 inches.
How Often Should You Water a Plagiolirion horsmannii?
Plagiolirion horsmannii 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 Plagiolirion horsmannii Need?
Plagiolirion horsmannii thrives in partial shade to full sun.
Light Requirement
Partial shade to full sun
What Temperature and Humidity Does the Plagiolirion horsmannii Prefer?
Plagiolirion horsmannii grows best at temperatures of 50–75°F. Plagiolirion horsmannii prefers humidity levels of 40–60%.
Temperature
50–75°F
Humidity
40–60%
What Soil Mix Works Best for a Plagiolirion horsmannii?
Well-draining sandy loam with added organic matter. Good drainage is essential for Plagiolirion horsmannii to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Plagiolirion horsmannii?
Feed Plagiolirion horsmannii 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 Plagiolirion horsmannii?
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 Plagiolirion horsmannii?
Plagiolirion horsmannii can be propagated through offsets, seeds.
Is the Plagiolirion horsmannii Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Plagiolirion horsmannii, 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 Plagiolirion horsmannii?
Plagiolirion horsmannii is susceptible to aphids, thrips, 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 Plagiolirion horsmannii Need?
Plagiolirion horsmannii grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Plagiolirion horsmannii is native to Colombia. In cooler regions, grow Plagiolirion horsmannii as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 12a
Keep exploring plants
Plagiolirion horsmannii 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 Plagiolirion genus — compare its care with other Plagiolirion species on PlantoScan.
Plagiolirion is part of the Amaryllidaceae plant family — browse all Amaryllidaceae genera and species.
Plagiolirion horsmannii 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: Plagiolirion horsmannii Baker, family Amaryllidaceae (first published in Gard. Chron. , n.s., 20: 38 (1883)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Plagiolirion horsmannii, 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 12a, 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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