One-leaved Blood Lily Plant Care
Haemanthus unifoliatus Snijman
Updated · Sources · How we source care data
Haemanthus unifoliatus is a perennial flowering plant and geophyte belonging to the genus Haemanthus. It is endemic to the Northern Cape.
Every 7–10 days
Bright indirect to partial shade
60–75°F
50–70%
At a glance
How do you care for One-leaved Blood Lily?
Water One-leaved Blood Lily every 7–10 days, letting the top layer of soil dry out between waterings, and give it bright indirect to partial shade. It prefers temperatures of 60–75°F (16–24°C) and 50–70% humidity. Fertilize it every 6 months during the growing season. It is reported as toxic to pets, so keep it out of reach of pets.
What Is the One-leaved Blood Lily?
One-leaved Blood Lily (Haemanthus unifoliatus) belongs to the Amaryllidaceae family within the Haemanthus genus. One-leaved Blood Lily is native to the Northern Cape. One-leaved Blood Lily is also known as Blood Lily.
One-leaved Blood Lily displays a clumping perennial growth habit, reaching up to 1.5 ft tall with a spread of approximately 1 ft. One-leaved Blood Lily produces showy clusters of red or white flowers on tall stalks.
Leaf size: approximately 8 inches.
How Often Should You Water a One-leaved Blood Lily?
Haemanthus unifoliatus 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 One-leaved Blood Lily Need?
One-leaved Blood Lily thrives in bright indirect to partial shade. Avoid placing One-leaved Blood Lily in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Bright indirect to partial shade
What Temperature and Humidity Does the One-leaved Blood Lily Prefer?
Haemanthus unifoliatus grows best at temperatures of 60–75°F. One-leaved Blood Lily 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 One-leaved Blood Lily?
Well-draining sandy soil mix with added organic matter. Good drainage is essential for One-leaved Blood Lily to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a One-leaved Blood Lily?
Feed One-leaved Blood Lily 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 One-leaved Blood Lily?
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 One-leaved Blood Lily?
One-leaved Blood Lily can be propagated through offsets, seeds. Similar propagation techniques also apply to white paintbrush plant care, which shares the same genus.
Is the One-leaved Blood Lily Toxic to Pets and Children?
Toxic (caution)
Reported as toxic in our plant data. Not verified by the ASPCA.
Toxic to pets, can cause gastrointestinal upset if ingested
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 One-leaved Blood Lily?
One-leaved Blood Lily is susceptible to aphids, mealybugs, 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 One-leaved Blood Lily Need?
One-leaved Blood Lily grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. One-leaved Blood Lily is native to the Northern Cape. In cooler regions, grow One-leaved Blood Lily as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13a
Keep exploring plants
One-leaved Blood Lily 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 Haemanthus genus — compare its care with other Haemanthus species on PlantoScan.
Haemanthus is part of the Amaryllidaceae plant family — browse all Amaryllidaceae genera and species.
One-leaved Blood Lily thrives in bright light and direct sun — see other bright-light plants.
More Haemanthus Species
Other Haemanthus species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Haemanthus unifoliatus Snijman, family Amaryllidaceae (first published in J. S. African Bot. , Suppl. 12: 109 (1984)) — World Flora Online record, IPNI name record.
- Pet toxicity: One-leaved Blood Lily is reported as toxic to pets in our plant data (not verified by the ASPCA), so treat it with caution. 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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