When you get a rose (or any flowers), unless they're already in water, you shouldn't put them straight into water, you should do this:
Fill your sink with water (not too hot, not icy cold though either). Put the stems into the water. Fill the vase with water and, if you have it, flower food. Trim the bottom 1/2 inch to an inch off the bottom of the stem, at a slight angle, with sharp scissors. Keep the stem underwater while you make the cut.
Trim off any leaves that are going to be below the water line before you put it in the water.
If your rose is already wilted, then you can try the stuff on this site - it has a lot of great tips on reviving roses, some you can do, some you might skip, as your rose needs :-)
at 4:28 AM on May. 11, 2009