Plan to receive your flowers a day in advance and set them out right away. If it is not possible to make the bouquets on the day you receive the wholesale roses, prepare them as described above and set them in larger vases until it is time to make the arrangements. When handled carefully they will last several days and look beautiful on your event tables when guests arrive. On the day of your event, examine each bouquet and gently pull off any wilted petals to ensure your arrangements look their best.