Pink tulips in a vase can add a touch of romance to any space. They are a beautiful flower to display in a home, office, or as a gift. When selecting pink tulips for a vase, look for flowers that are freshly cut and have a healthy stem and vibrant color. Tulips last the longest when placed in a cool area away from direct sunlight. Change the water every few days and trim the stems to keep them looking fresh. A few drops of bleach in the water can also help to keep the water clean and tulips looking beautiful.