Rose wedding bouquets need a wrap or tape that securely holds the stems in place. BindIt tape is a newer product that I love. It comes in both green and clear.
Be careful when handling it, it quickly adheres to itself and there is no pulling it apart after it adheres.
Peel off the outer protective film carefully.
Pull tightly as you wind it around the top of the cut stems.
It creates a very tight, bonded finish that will not allow any stems to fall apart after it is wrapped.