Keep flowers in a cool place away from heat sources, drafts and direct sunlight. Use floral food additive by following the directions on the package. If there is floral foam used in your arrangement be sure to keep it saturated by watering daily.
Keep vases filled with water at all times. Should water become cloudy replace with fresh water containing floral food. Remove any leaves below the water line to prevent bacterial growth which can harm your flowers. For best results, angle cut 1 - 2 inches off stems every 2 - 3 days.
Roses are thirsty flowers! If a rose wilts or droops, cut 1" off the stem and submerge entire flower and stem in a tub or tray of warm water. Allow rose about 2 hours under water to revive. Another option would be to cut off the bloom and place in a bowl of water and float it.