Does anyone know what this tree is called?

I saw this amazing tree and snapped this photo. A few days later I saw one, about 3.5 ft tall, for sale and I am thinking or purchasing it. Does anyone know what it is called and how to plant and care for it?

 

Foliage reminds me of a Yucca of some sort. Do you have a bigger photo?

 

Re: Name this tree

I did some looking around and came up with Aloe plicatilis. I consulted both books and the internet. I have seen these around and also wondered what they were.

 

Re: Name this tree

Wow, thanks so much...
Now I can call the store and put it on hold!

 

Thanks for responding to my most.
I put another post up in a different forum and someone gave me the name,
it's an Aloe plicatilis.

But here's a detail of the leaf, in case you're still curious.
Thanks again!