Devil's Backbone (Euphorbia tithymaloides)

Devil's Backbone

Euphorbia tithymaloides

It carries zigzag stems like a playful spine, with tiny blooms peeking from bracts. Succulent evergreen subshrub.

Partial sun
1/week
Beginner
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Plant Needs

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Sunlight Bright indirect light; tolerates partial shade, avoid harsh midday direct sun that can scorch leaf margins
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Watering Water thoroughly only when the top 2–3 cm of soil is completely dry; avoid overwatering to prevent root rot
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Temperature Thrives in 18–27°C; protect from temperatures below 12°C to prevent leaf drop and stem damage
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Characteristics

  • Leaf: Oval, glossy green leaves with reddish margins, arranged oppositely along stems
  • Flower: Small white blooms surrounded by bright red or pink showy bracts
  • Stem: Succulent, zigzagging green stems with faint red tints; exudes milky sap when damaged
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Care Guide

Watering

Keep soil slightly moist, allowing the top layer to dry between waterings

Fertilization

Diluted succulent fertilizer once monthly. Cease fertilizing in autumn and winter to support dormancy

Banana peel compost tea:Use fully composted banana peels, dilute 1:20 with water for root drench; avoid applying directly to leaves to prevent sap irritation
Pruning
  • Trim leggy stems in early spring to encourage bushier, compact growth
  • Remove yellowing or damaged leaves at the base to maintain plant health and airflow
  • Wear disposable gloves to avoid contact with the irritating milky sap during pruning
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA-confirmed toxic: milky sap causes oral irritation, drooling, vomiting, and difficulty swallowing

Humans: Milky sap causes skin irritation, redness, or blistering on contact; oral irritation if ingested

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Garden Uses & Culture

Culture: Symbolizes resilience due to its drought-tolerant, low-maintenance nature

Usage: Ornamental succulent for indoor tabletops, hanging baskets, or warm climate garden borders