Photo: Katharine KhamhaengwongCC BY 4.0via iNaturalistresized / cropped
Slender-leaved Asphodel Plant Care
Asphodelus tenuifolius Cav.
Updated · Sources · How we source care data
With long, narrow leaves that resemble blades of grass, this plant originates from the Mediterranean region. Plant collectors are drawn to Asphodelus tenuifolius for its unique foliage and its ability to thrive in a variety of garden conditions.
Every 10–14 days
Full sun to partial shade
50–80°F
40–70%
At a glance
How do you care for Slender-leaved Asphodel?
Water Slender-leaved Asphodel every 10–14 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 40–70% humidity. Fertilize it every 6 months during the growing season.
Where Is the Slender-leaved Asphodel Native To?
What Is the Slender-leaved Asphodel?
Slender-leaved Asphodel (Asphodelus tenuifolius) belongs to the Asphodelaceae family within the Asphodelus genus. Slender-leaved Asphodel is native to North Africa, Southern Europe, the Middle East and South Asia.
Slender-leaved Asphodel displays an upright, clumping perennial growth habit, reaching up to 3 ft tall with a spread of approximately 2 ft. Slender-leaved Asphodel produces showy spikes of white or yellow flowers.
Leaf size: approximately 12 inches.
How Often Should You Water a Slender-leaved Asphodel?
Asphodelus tenuifolius requires watering every 10–14 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 10–14 days
Let soil partially dry between waterings
What Light Does the Slender-leaved Asphodel Need?
Slender-leaved Asphodel thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Slender-leaved Asphodel Prefer?
Asphodelus tenuifolius grows best at temperatures of 50–80°F. Slender-leaved Asphodel prefers humidity levels of 40–70%.
Temperature
50–80°F
Humidity
40–70%
What Soil Mix Works Best for a Slender-leaved Asphodel?
Well-draining sandy soil with added organic matter for nutrients. Good drainage is essential for Slender-leaved Asphodel to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Slender-leaved Asphodel?
Feed Slender-leaved Asphodel 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 Slender-leaved Asphodel?
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 Slender-leaved Asphodel?
Slender-leaved Asphodel can be propagated through seeds, division of offsets. Similar propagation techniques also apply to single-stemmed asphodel plant care, which shares the same genus.
Is the Slender-leaved Asphodel Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Slender-leaved Asphodel, 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 Slender-leaved Asphodel?
Slender-leaved Asphodel is susceptible to aphids, snails, slugs. 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 Slender-leaved Asphodel Need?
Slender-leaved Asphodel grows outdoors in USDA Zone 8a – 11b. It survives winters down to planting zone 8a. Slender-leaved Asphodel is native to North Africa, Southern Europe, the Middle East and South Asia.
Hardiness Zone
Zone 8a – 11b
Keep exploring plants
Slender-leaved Asphodel 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 Asphodelus genus — compare its care with other Asphodelus species on PlantoScan.
Asphodelus is part of the Asphodelaceae plant family — browse all Asphodelaceae genera and species.
Slender-leaved Asphodel thrives in bright light and direct sun — see other bright-light plants.
More Asphodelus Species
Other Asphodelus species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Asphodelus tenuifolius Cav., family Asphodelaceae (first published in Anales Ci. Nat. iii. (1801) 46.) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Slender-leaved Asphodel, 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: Katharine Khamhaengwong, CC BY 4.0, iNaturalist — original.
- Hardiness zone: USDA Zone 8a – 11b, 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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