Pencil Cactus Indian Tree Spurge (euphorbia tirucalli) 10 clips (approx 6-8") It can be grown as a potted plant, a shrub, or even a tree that reaches 25 feet in height You will receive ten cuttings ranging approximately 6-8 inches which can be easily rooted, even by the novice, just by sticking in moist soil Pencil Cactus is a powerful natural hydrocarbon filter that pulls hydrocarbons straight out of the air and stores them This plant is highly tolerant of heat and dry climates (zones 9-11) but also does well in a tropical jungle atmosphere, or indoors