Water. That's one thing us plants need on a regular basis or else we'll just shrivel up and die, right? If your owner is going away on holiday they damn well better get the neighbour to water us; or get some of those special hydrating crystals!
But did you know that not all plants are like this? Oh no, some plants can survive for yeeeaars without any water... some plants amputate their own limbs to survive! ... Some plants can even come back... from the dead!
How do they do this?! I hear you ask, is it magic?
Not quite, but it's close! These amazing plants have special adaptations that enable them to live right out in the middle of a desert! The last place you'd ever find me!
You can categorise these fellas into four main types. Let's have a look at them in more detail: