
Photo: Morten RossCC BY 4.0via iNaturalistresized / cropped
Sikkim Spurge Plant Care
Euphorbia sikkimensis Boiss.
Updated · Sources · How we source care data
This plant's most distinctive visual feature is its striking lance-shaped leaves with a prominent red midrib. Originating from the eastern Himalayas, Euphorbia sikkimensis is highly sought after by plant collectors for its unique foliage and rare availability in cultivation.
Every 14–21 days
Full sun to partial shade
60–85°F
40–60%
At a glance
How do you care for Sikkim Spurge?
Plant Sikkim Spurge in full sun to partial shade (USDA zones 6a–9b) and water a young shrub every 14–21 days until it is established. It tolerates temperatures of 60–85°F (16–29°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 Sikkim Spurge Native To?
What Is the Sikkim Spurge?
Sikkim Spurge (Euphorbia sikkimensis) belongs to the Euphorbiaceae family within the Euphorbia genus. Sikkim Spurge is native to Nepal, the eastern Himalayas, Tibet, south-central and southeast China, Myanmar, and Vietnam.
Sikkim Spurge displays a varies by species, can be upright, sprawling, or clumping growth habit, reaching up to 3 ft tall with a spread of approximately 2 ft. Sikkim Spurge produces small, often inconspicuous flowers surrounded by colorful bracts.
Leaf size: approximately 4 inches.
How Often Should You Water a Sikkim Spurge?
Water a young or newly planted Sikkim Spurge every 14–21 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 14–21 days
Until established; then in dry spells
What Light Does the Sikkim Spurge Need?
Sikkim Spurge thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Sikkim Spurge Prefer?
Euphorbia sikkimensis tolerates temperatures of 60–85°F. Sikkim Spurge prefers humidity levels of 40–60%.
Temperature
60–85°F
Humidity
40–60%
What Soil Mix Works Best for a Sikkim Spurge?
Well-draining sandy soil mix with perlite and gravel. Good drainage is essential for Sikkim Spurge to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Sikkim Spurge?
Feed Sikkim Spurge 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 Sikkim Spurge?
Choose a spot with full sun to partial shade and well-draining sandy soil mix with perlite and gravel. Avoid low spots where water collects after rain.
Sikkim Spurge is suited to USDA Zone 6a – 9b.
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 Sikkim Spurge?
Sikkim Spurge can spread to about 2 ft (0.6 m) and reach about 3 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 Sikkim Spurge?
Prune Sikkim Spurge 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 Sikkim Spurge in Winter?
Sikkim Spurge is hardy down to USDA zone 6a, so once established it can stay outdoors through winter in that zone and warmer ones.
Water deeply in late autumn before the ground freezes, and spread a 5–8 cm (2–3 in) layer of mulch over the root zone, keeping it away from the trunk.
Young and container-grown shrubs need extra protection: roots in a pot freeze much more easily than roots in the ground.
How Do You Propagate a Sikkim Spurge?
Sikkim Spurge can be propagated through stem cuttings, offsets, seeds. Similar propagation techniques also apply to crown of thorns plant care, which shares the same genus.
Is the Sikkim Spurge Toxic to Pets and Children?
Toxic (caution)
Reported as toxic in our plant data. Not verified by the ASPCA.
Mildly toxic if ingested, can cause skin irritation
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 Sikkim Spurge?
Sikkim Spurge is susceptible to mealybugs, spider mites, aphids. 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 Sikkim Spurge Need?
Sikkim Spurge grows outdoors in USDA Zone 6a – 9b. It survives winters down to planting zone 6a. Sikkim Spurge is native to Nepal, the eastern Himalayas, Tibet, south-central and southeast China, Myanmar, and Vietnam.
Hardiness Zone
Zone 6a – 9b
Keep exploring plants
Sikkim Spurge 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 Euphorbia genus — compare its care with other Euphorbia species on PlantoScan.
Euphorbia is part of the Euphorbiaceae plant family — browse all Euphorbiaceae genera and species.
Sikkim Spurge thrives in bright light and direct sun — see other bright-light plants.
More Euphorbia Species
Other Euphorbia species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Euphorbia sikkimensis Boiss., family Euphorbiaceae (first published in Prodr. 15(2): 113 (1862)) — World Flora Online record, IPNI name record.
- Pet toxicity: Sikkim Spurge 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: Morten Ross, CC BY 4.0, iNaturalist — original.
- Hardiness zone: USDA Zone 6a – 9b, 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.
