Is there a chemical or treatment I can apply to a rose that will get
it to wilt within 1 or 2 minutes?  I would like to have the rose look
alive and then within a minute or two it's wilted.  Thank you.

Hi johngl,

I couldn't find a verifiable answer, but I wonder...if you took the
thin red "straw" on a can of compressed air, inserted it into the
stem, and shot a few puffs into the stem...Don't know, but this site
gave me the idea:
http://gci.gospelcom.net/dw/1999/04/29/

crabcakes-ga

Ammonia fumes will wilt a rose, as I learned to my dismay at my
wedding reception when ammonia was used to clean a countertop near my
roses.

Hi johngl,

Put some very hot water in a vase.  Put long stemmed rose in vase. 
That will also work.

Best regards,
tlspiegel