Adding something that is living, growing and green in your office space lightens up the mood. And when your boss hands you a cactus, you should take good care of it! Cactus has a reputation of being the tough guy in the Plant Kingdom, and therefore it is rather easy to take care of, consequently making it a convenient office plant. But do keep in mind that cacti require sunlight. So if your cubicle does not have access to it, put the succulent in the window sill for a few hours every day.