Euphorbia tirucalli “Pencil Cactus”

Euphorbia tirucalli

Price range: $5.50 through $13.00

(Common name: Pencil Cactus, Sticks on Fire, Milk Bush)

A sculpture in living green, Euphorbia tirucalli is a succulent shrub or small tree whose slender, cylindrical stems resemble bundles of vivid green pencils—hence its most common name. Native to arid and semi-arid regions of Africa and the Indian subcontinent, it thrives where other plants struggle, storing water in its thin, leafless stems and shrugging off intense sun and drought.

The plant’s leaves are tiny and ephemeral, soon dropping off to leave the smooth, jointed stems in full display. When stressed by cooler temperatures or strong sunlight, some cultivars (such as ‘Sticks on Fire’) blush with warm shades of orange and red, creating an even more dramatic display.

Caution: E. tirucalli produces a milky white latex sap that is highly irritating to skin and eyes and toxic if ingested. Always handle with care, wear gloves when pruning, and keep out of reach of children and pets.

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Description

🌿 Why Grow Euphorbia tirucalli

  • Architectural form — bold, minimal, and striking in modern landscapes.
  • Extreme drought tolerance — perfect for xeriscaping.
  • Container versatility — thrives indoors in bright light or on sunny patios.
  • Low maintenance — almost thrives on neglect.
  • Year-round visual interest — especially colorful in stress conditions.

 

🌱 Growing Guide

  • Type: Succulent shrub/tree (family Euphorbiaceae).
  • USDA Zones: 10–11 outdoors (grow in containers indoors in cooler climates).
  • Light: Full sun to bright, indirect light indoors.
  • Soil: Very well-draining cactus/succulent mix.
  • Water: Water deeply but infrequently; allow soil to dry completely between waterings.
  • Temperature: Prefers 60–85°F (16–29°C); protect from frost.
  • Pruning: Light shaping as needed—wear gloves and eye protection.
  • Propagation: Stem cuttings (allow cut ends to callus before planting).

 

✨ The Living Minimalist Sculpture

Part plant, part natural architecture, the pencil cactus is at home in both wild deserts and sleek modern gardens. Its stark, upright form and almost leafless silhouette make it a plant of pure line and light. Just remember—this beauty comes with a toxic edge.

Additional information

Size

4” Size, 1-Gallon Size

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