Euphorbia tirucalli
Common name
Pencil cactus, Firesticks
 
Growing conditions
Grow in well-draining gritty compost. South African euphorbia that turns fire red in colder months. Avoid sap. Don’t overwater as the roots can rot
 
Watering
Minimal watering required and even less in winter months. Shriveled leaves means it needs watering. Mushy or swollen means overwatered
 
Aspect
Full sun. Can tolerate a bit of partial shade
 
Temperature
Average temps between 18-21 degrees C but don’t let it drop below 10 degrees C