Gerbera daisies?

I purchased some fresh cut gerbera daisies for the vase on my desk at work. After only one day, they are already dying. I re-trimmed the stems and put them into water with that powder stuff when I brought them to the office. What is the best way to get maximum life from gerbera daisies? how long do they typically last?

Gerbera daisies?
I believe they were old. Mine last a week or so in a vase. All I do is put them in water in a vase, but I don't do anything special. I have planted them in pots at home, and they are very temperamental, and it's hard to make them last. I've been told that's why they are so expensive.
Reply:Try aspirin, by the way this is my favorite flower=)
Reply:They should last I would say a week or so. They definitely shouldn't be dying yet. Maybe the daisies were older than they were made out to be when you bought them. You seem to be doing all the right things. I don't know how else to keep them alive longer.
Reply:The flower heads of gerberas are very heavy so the stems may not be supporting them adequately. The filler greens usually help with this or the "straws" they use to support the stems. If you have some large, clear milkshake straws to slip over the stems this may help. :)