Succulents, of which there are a few thousand in the world, also do very well on little or no water. My collection has just started really, so don't have that many yet. Here's some photographs of a few of them.
This first one is my favorite, the leaves would be the size of my hand, the palest of greens, edged like a petticoat in pink.
Do you see the flower buds emerging from the centre of the plant? Will have to wait a few days to see what colour they are going to be. Exciting isn't it?