Pencil Cactus (Euphorbia tirucalli 'Rosea'): Firesticks Succulent

Overview

Pencil Cactus 'Rosea' (Euphorbia tirucalli 'Rosea', marketed as "Firesticks" or "Sticks of Fire") is a striking, spineless succulent shrub with cylindrical, pencil-thick branches that turn brilliant orange-red in full sun and cool weather. The green form is green year-round; 'Rosea' provides spectacular seasonal color. Tiny leaves appear briefly at tips. Inconspicuous yellow cyathia appear in clusters. The milky sap is highly toxic and irritating. Fast-growing, it can reach 10–20 feet but is easily pruned. Use with caution around children and pets.

Key Features

• Stems: Cylindrical, smooth, pencil-thick; green turning orange-red.
• Color: Best red in full sun and cool temps (fall/winter).
• Sap: Milky, highly toxic, severe irritant; wear protection.
• Form: Upright, branching shrub; 10–20 ft unpruned.

Care Guidelines

Light

Full sun for best color.

Water

Low. Drought-tolerant. Water when dry.

Soil

Well-drained. Tolerates poor soil.

Safety

Sap causes severe skin/eye irritation. Wear gloves, goggles. Keep away from kids/pets.

Taxonomy

Family:	Euphorbiaceae
Genus:	Euphorbia (yoo-FOR-bee-uh)
Species:	tirucalli (tee-roo-KAL-ee)
Cultivar:	Rosea
Also known as:	Firesticks
Synonyms:	Euphorbia rhipsaloides, Euphorbia viminalis