A stunning form of the familiar 'Pencil Cactus', which is of course, not a cactus at all. Anyway, the pencil-thin stems fairly glow with red, orange and yellow, fiery coloration. Will become a large shrub or small tree, probably reaching a max of 8 feet or so, in the ground. (zone 10 and above) In pots, you can control the size. Needs full sun or very bright light for best color.