Find a vase :
You may have noticed your flowers no longer have roots, and that they're not longer growing in the dirt. Good catch! That means it's time to get them in your favorite vase with some fresh water and add in flower food.
Avoid Soap :
Also, little known fact: flowers hate soap. If you decide to give that dusty vase that you pulled out from under the sink a wash, make sure to rinse it well to get rid of any soapy residue!
Trim the stems :
Keep those stems and leaves trimmed! Always cut your flowers at an angle so they won't suffocate on the bottom of the vase. After the initial trimming, check the bottoms of your stems every couple of days, and if the ends are looking a bit slimy, just snip off an inch or so.
Trim excess leaves :
Take off any excess leaves so that all the energy is funneled into the petals. Pay special attention to leaves that are in the water as they'll decompose and shorten the lifespan of your flowers.
Mist Them :
Flowers like to be misted as well (honestly, who doesn't?). Spray down the petals from time to time to keep 'em extra fresh and jazzy, and remove any that are clearly past their prime.
Keep them cool :
Finally, keep your bouquet in a cool area as much as you can. Don't put them near radiators, fireplaces, ovens, etc, and be sure to leave them at home when you take that trip to the beach!
THAT'S ABOUT IT
That's a lot of rules - sorry to be so high maintenance! But follow them closely and your bouquet will stay beautiful for days or even weeks.