I have some sort of cactus. I cut off a piece of it and put it into water in a vase. It is growing a bunch of root now. What do I do next? Do I just pick it up and put it in the ground or something?

see picture:
http://pg.photos.yahoo.com/ph/bzdaca...acat/my_photos

 

& bump

 

are you talking about the thing under 'my flowers' album?

usually to grow cactus you can just break the piece off and stick it in some dirt, and make sure it stays moist for a while. they are pretty hardy.