Photo: no rights reservedCC0 1.0via iNaturalist
Japanese Lily Plant Care
Lilium speciosum Thunb.
Updated · Sources · How we source care data
Lilium speciosum is an East Asian species of plants in the lily family. It is native to southern Japan and southern China, where it can be found at elevations of 600–900 metres (2,000–3,000 ft).
Every 4–7 days
Full sun to partial shade
50–75°F
40–70%
At a glance
How do you care for Japanese Lily?
Water Japanese Lily every 4–7 days, letting the top layer of soil dry out between waterings, and give it full sun to partial shade. It prefers temperatures of 50–75°F (10–24°C) and 40–70% humidity. Fertilize it every 6 months during the growing season. The ASPCA lists it as toxic to cats but non-toxic to dogs, so keep it out of reach of pets.
What Is the Japanese Lily?
Japanese Lily (Lilium speciosum) belongs to the Liliaceae family within the Lilium genus. Japanese Lily is native to southern Japan and southern China.
Japanese Lily displays an upright, tall perennial growth habit, reaching up to 4 ft tall with a spread of approximately 1 ft. Japanese Lily produces large, showy flowers in various colors like white, pink, orange, or red.
Leaf size: approximately 8 inches.
How Often Should You Water a Japanese Lily?
Lilium speciosum requires watering every 4–7 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 4–7 days
Let soil partially dry between waterings
What Light Does the Japanese Lily Need?
Japanese Lily thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Japanese Lily Prefer?
Lilium speciosum grows best at temperatures of 50–75°F. Japanese Lily prefers humidity levels of 40–70%.
Temperature
50–75°F
Humidity
40–70%
What Soil Mix Works Best for a Japanese Lily?
Well-draining, fertile soil with added organic matter like compost or peat moss. Good drainage is essential for Japanese Lily to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Japanese Lily?
Feed Japanese 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 Japanese Lily?
Repot every 2-3 years in early spring after flowering. 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 Japanese Lily?
Japanese Lily can be propagated through division of bulbs, scales, or seeds. Similar propagation techniques also apply to tiger lily plant care, which shares the same genus.
Is the Japanese Lily Toxic to Pets and Children?
Toxic to cats but non-toxic to dogs
Source: ASPCA Animal Poison Control Center plant list. View the ASPCA entry
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 Japanese Lily?
Japanese Lily is susceptible to aphids, red lily beetles, 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 Japanese Lily Need?
Japanese Lily grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Japanese Lily is native to southern Japan and southern China. In cooler regions, grow Japanese Lily as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 12a
Keep exploring plants
Japanese 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 Lilium genus — compare its care with other Lilium species on PlantoScan.
Lilium is part of the Liliaceae plant family — browse all Liliaceae genera and species.
Japanese 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: Lilium speciosum Thunb., family Liliaceae (first published in Trans. Linn. Soc. London 2: 322 (1794)) — World Flora Online record, IPNI name record, Wikidata.
- Pet toxicity: The ASPCA lists Japanese Lily as toxic to cats but non-toxic to dogs. Source: ASPCA Toxic and Non-Toxic Plant List.
- Photo: Public domain, CC0 1.0, iNaturalist — original.
- 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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