How can i generate my flower bouquet closing longer? some leaves are drying out but for the most part it is...

some leaves are drying out but for the most part it is still soft
Answers:    You can manufacture it longer by removing the deadend leaves, trimming the bottom of the stems, changing the wet frequently(daily or every other day) and by adding the flower food that comes beside the flowers or by adding a moment or two sugar to the water.
Take on a daily basis showers LOL