Euphorbia tirucalli <br> Pencil Cactus

Euphorbia tirucalli
Pencil Cactus

Aquatopia Conservatory
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A rare and unusual cactus that branches like a tree. Be careful you don't touch the sap inside!
Euphorbia tirucalli                     
yoo-FOR-bee-ah tee-roo-KAL-lye

Common Names: Pencil Cactus, Stick of Fire, African Milkbush, Finger Tree, Aveloz, Indian Tree Spurge, Petroleum Plant, Rubber Euphorbia

Family: Euphorbiaceae 
Origin: Ethiopia to India

Growth: Upwards, branching

Light: Full sun

Foot Candles: 250+

Water: Let dry completely

Humidity: Not required

Temperature: 16°C - 40°C

Soil: Well draining cactus mix

Container: Pot with drainage

Nutrients: 7-7-7 Monthly 

Propagation: Stem / branch cuttings

Interiorscape Use: Desert themed atrium

Common Pests: Mealybugs, Aphids, Spider Mites, Scale, Thrips.

Common Issues: The stick-like leaves will shrivel when not watered enough. They will return to normal if watered before they completely shrivel and fall. Some cultivars grown for their red colour may revert to green with insufficient light.  

Comments: The new growth is a different colour from main plant, depending on the cultivar it can be a light green or a vibrant red. 

Toxicity:  Low-level toxin can cause nausea, vomiting, and diarrhea when ingested. Contact between the plant's sap and skin can cause minor irritation including redness, swelling, and blisters with some delay after initial contact. Eye contact with the sap can cause blindness lasting several days.