Keep It 45° – When the real flowers are in your possession the first thing to do is cut them at a 45° angle. Once you put them in water that angle will allow the flower to soak up more water and survive a lot longer. After they’re soaking up some of that tasty water, put the vases in a room that’s preferably below 60°. The higher the temperature, the more chance the petals will wilt. This just might mean one room will end up being a lot colder for a few days, before the wedding, to ensure they look perfect for the big day.