Devils Backbone Plant (Euphorbia tithymaloides)

Image: AI generated

Devils Backbone Plant Plant Care

Euphorbia tithymaloides L.

Updated · Sources · How we source care data

Euphorbia tithymaloides is a perennial succulent spurge native to the tropical and subtropical areas of North America and Central America. An erect shrub, the plant is also known by the scientific name Pedilanthus tithymaloides.

🌿Shrubs🪴Houseplants🌵Succulents
Water

Every 14–21 days

Light

Full sun to partial shade

Temp

60–85°F

Humidity

40–60%

At a glance

How do you care for Devils Backbone Plant?

Plant Devils Backbone Plant in full sun to partial shade (USDA zones 9b–11) 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 Devils Backbone Plant Native To?

Native range10 countries

What Is the Devils Backbone Plant?

Devils Backbone Plant (Euphorbia tithymaloides) belongs to the Euphorbiaceae family within the Euphorbia genus. Devils Backbone Plant is native to the tropical and subtropical areas of North America and Central America. Devils Backbone Plant is also known as Slipper Spurge, Devil's Backbone, Redbird Cactus.

Devils Backbone Plant 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. Devils Backbone Plant produces small, often inconspicuous flowers surrounded by colorful bracts.

Leaf size: approximately 4 inches.

How Often Should You Water a Devils Backbone Plant?

Water a young or newly planted Devils Backbone Plant 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 Devils Backbone Plant Need?

Devils Backbone Plant thrives in full sun to partial shade.

Light Requirement

Full sun to partial shade

What Temperature and Humidity Does the Devils Backbone Plant Prefer?

Euphorbia tithymaloides tolerates temperatures of 60–85°F. Devils Backbone Plant prefers humidity levels of 40–60%.

Temperature

60–85°F

Humidity

40–60%

What Soil Mix Works Best for a Devils Backbone Plant?

Well-draining sandy soil mix with perlite and gravel. Good drainage is essential for Devils Backbone Plant to prevent waterlogging, which leads to root rot and fungal issues.

How Often Should You Fertilize a Devils Backbone Plant?

Feed Devils Backbone Plant 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 Devils Backbone Plant?

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.

Devils Backbone Plant is suited to USDA Zone 9b – 11.

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 Devils Backbone Plant?

Devils Backbone Plant 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 Devils Backbone Plant?

Prune Devils Backbone Plant 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 Devils Backbone Plant in Winter?

Devils Backbone Plant is frost-tender (hardy to USDA zone 9). 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 Devils Backbone Plant?

Devils Backbone Plant can be propagated through stem cuttings, offsets, seeds. Similar propagation techniques also apply to poinsettia plant care, which shares the same genus.

Is the Devils Backbone Plant 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 Devils Backbone Plant?

Devils Backbone Plant 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 Devils Backbone Plant Need?

Devils Backbone Plant grows outdoors in USDA Zone 9b – 11. It survives winters down to planting zone 9b. Devils Backbone Plant is native to the tropical and subtropical areas of North America and Central America. In cooler regions, grow Devils Backbone Plant as a houseplant or bring it indoors before the first frost.

Hardiness Zone

Zone 9b – 11

Keep exploring plants

Devils Backbone Plant 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.

Devils Backbone Plant 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 tithymaloides L., family Euphorbiaceae (first published in Sp. Pl. : 453 (1753)) — World Flora Online record, IPNI name record, Wikidata.
  • Pet toxicity: Devils Backbone Plant 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: AI-generated illustration (labelled on the image).
  • Hardiness zone: USDA Zone 9b – 11, 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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