Long-leaved Lily Plant Care
Ammocharis longifolia (L.) Herb.
Updated · Sources · How we source care data
Ammocharis longifolia is an African species of bulbous flowering plant in the family Amaryllidaceae. It has been placed as the only species, Cybistetes longifolia, in the monotypic genus Cybistetes.
Every 7–14 days
Full sun to partial shade
65–80°F
40–60%
At a glance
How do you care for Long-leaved Lily?
Water Long-leaved Lily 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 65–80°F (18–27°C) and 40–60% 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 Long-leaved Lily?
Long-leaved Lily (Ammocharis longifolia) belongs to the Amaryllidaceae family within the Ammocharis genus. Long-leaved Lily is also known as Long-leaved Ammocharis.
Long-leaved Lily displays a clumping perennial growth habit, reaching up to 1.5 ft tall with a spread of approximately 1 ft. Long-leaved Lily produces large clusters of trumpet-shaped flowers in shades of pink, red, or white.
Leaf size: approximately 12 inches.
How Often Should You Water a Long-leaved Lily?
Ammocharis longifolia 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 Long-leaved Lily Need?
Long-leaved Lily thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Long-leaved Lily Prefer?
Ammocharis longifolia grows best at temperatures of 65–80°F. Long-leaved Lily prefers humidity levels of 40–60%.
Temperature
65–80°F
Humidity
40–60%
What Soil Mix Works Best for a Long-leaved Lily?
Well-draining sandy soil mix with added organic matter. Good drainage is essential for Long-leaved Lily to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Long-leaved Lily?
Feed Long-leaved 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 Long-leaved 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 Long-leaved Lily?
Long-leaved Lily can be propagated through offsets, seeds. Similar propagation techniques also apply to nerina-like lily plant care, which shares the same genus.
Is the Long-leaved Lily Toxic to Pets and Children?
Toxic (caution)
Reported as toxic in our plant data. Not verified by the ASPCA.
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 Long-leaved Lily?
Long-leaved Lily is susceptible to aphids, spider mites, thrips. 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 Long-leaved Lily Need?
Long-leaved Lily grows outdoors in USDA Zone 13b. It survives winters down to planting zone 13b. In cooler regions, grow Long-leaved Lily as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13b
Keep exploring plants
Long-leaved 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 Ammocharis genus — compare its care with other Ammocharis species on PlantoScan.
Ammocharis is part of the Amaryllidaceae plant family — browse all Amaryllidaceae genera and species.
Long-leaved Lily 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: Ammocharis longifolia (L.) Herb., family Amaryllidaceae (first published in Appendix : 17 (1821)) — World Flora Online record, IPNI name record.
- Pet toxicity: Long-leaved 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 13b, 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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