Yucca plants. Unless it's in an area where it gets lots of draughts and heat, water infrequently. Once a year sling some more compost around it. Occasionally dust the leaves. They don't tend to like lots of direct sunlight (through windows).

Other than that they are fairly indestructable. Even my Mother kept one alive for over ten years. It was only a visiting cousin that killed it off with a football (in the front room, I ask you.......).

TTFN Lady P.