
Photo: pbsgCC BY 4.0via iNaturalistresized / cropped
None known Plant Care
Claoxylon longifolium Müll.Arg.
Updated · Sources · How we source care data
With its strikingly long, lance-shaped leaves that can grow up to 12 inches in length, this plant originates from tropical regions of Southeast Asia. Plant collectors are drawn to Claoxylon longifolium for its unique foliage that adds a touch of exotic flair to any indoor garden or greenhouse setting.
Every 7–10 days
Bright indirect light
65–80°F
50–70%
At a glance
How do you care for None known?
Plant None known in bright indirect light (USDA zones 13b) and water a young shrub every 7–10 days until it is established. It tolerates temperatures of 65–80°F (18–27°C). Fertilize it every 6 months during the growing season. It is reported as toxic to pets, so keep it out of reach of pets.
Where Is the None known Native To?
What Is the None known?
None known (Claoxylon longifolium) belongs to the Euphorbiaceae family within the Claoxylon genus. None known is native to Assam, South-East Asia, New Guinea and Caroline Islands.
None known displays a tall, upright shrub growth habit, reaching up to 4 ft tall with a spread of approximately 2 ft. None known produces small clusters of inconspicuous flowers.
Leaf size: approximately 5 inches.
How Often Should You Water a None known?
Water a young or newly planted None known every 7–10 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established shrubs mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.
Watering Frequency
Every 7–10 days
Until established; then in dry spells
What Light Does the None known Need?
None known thrives in bright indirect light. Avoid placing None known in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Bright indirect light
What Temperature and Humidity Does the None known Prefer?
Claoxylon longifolium tolerates temperatures of 65–80°F. None known prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.
Temperature
65–80°F
Humidity
50–70%
What Soil Mix Works Best for a None known?
Well-draining soil mix with added perlite for aeration. Good drainage is essential for None known to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a None known?
Feed None known every 6 months during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established shrubs in good soil often need little extra feeding, so let weak growth or pale foliage guide you.
Stop feeding by late summer so new growth can harden before winter.
Fertilizing
Every 6 months
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
Where Should You Plant a None known?
Choose a spot with bright indirect light and well-draining soil mix with added perlite for aeration. Avoid low spots where water collects after rain.
None known is suited to USDA Zone 13b.
Plant container-grown or balled-and-burlapped shrubs in spring or early autumn, setting the root flare at soil level, and water well after planting.
How Far Apart Should You Plant a None known?
None known can spread to about 2 ft (0.6 m) and reach about 4 ft (1 m) tall. Space plants about 2 ft (0.6 m) apart so mature crowns don't crowd each other, and plant at least half that distance from buildings, fences and paths.
Planning a row or hedge? Try the plant spacing calculator.
How Do You Prune a None known?
Prune None known while it is dormant in late winter: first remove dead, damaged and crossing branches, then thin lightly for shape.
If it flowers in spring, prune right after flowering instead so you don't remove next year's buds. Never take off more than about a quarter of the shrub in one year.
How Do You Care for a None known in Winter?
None known is frost-tender (hardy to USDA zone 13). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.
How Do You Propagate a None known?
None known can be propagated through stem cuttings, air layering. Similar propagation techniques also apply to claoxylon angustifolium plant care, which shares the same genus.
Is the None known Toxic to Pets and Children?
Toxic (caution)
Reported as toxic in our plant data. Not verified by the ASPCA.
Mildly toxic to humans and pets 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 None known?
None known is susceptible to spider mites, mealybugs, scale insects. 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 None known Need?
None known grows outdoors in USDA Zone 13b. It survives winters down to planting zone 13b. None known is native to Assam, South-East Asia, New Guinea and Caroline Islands. In cooler regions, grow None known as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13b
Keep exploring plants
None known 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 Claoxylon genus — compare its care with other Claoxylon species on PlantoScan.
Claoxylon is part of the Euphorbiaceae plant family — browse all Euphorbiaceae genera and species.
None known 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: Claoxylon longifolium Müll.Arg., family Euphorbiaceae (first published in Cat. Hort. Bot. Bogor. Alt. : 235 (1844)) — World Flora Online record, IPNI name record.
- Pet toxicity: None known 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.
- Photo: pbsg, CC BY 4.0, iNaturalist — original.
- 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.
