Euphorbia tirucalli 'Sticks on Fire'

With its brightly colored stems of yellow, orange and green ombre stciks on fire is a fun one to watch. And the colors will change depending on how much sunlight it gets. If you give it the tiny amount of care it requires then it will eventually get huge -- over 10 ft tall. Or you can trim it down and give it exactly the shape you want, but be careful handling and propgating this plant, it's milky white sap is toxic and can cause skin irritation.