Euphorbia tirucalli - Pencil Cactus
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.