When roses receive proper care, they should last between 7-14 days. Below are some flower care tips that will help maintain their vase life.
Start With a Clean Vase
Be sure that the vase you use for your roses is thoroughly clean. If dirty, wash with soap and water, and to sanitize, soak it in a 5% solution of bleach and water for a few minutes (which works out to one cup of bleach per gallon of water).
Cutting the Stems
Upon receiving your roses, use a sharp knife or pruning shears to trim the stems (without crushing them). Cut at least an inch of stem off the roses at a 45-degree angle before you put them in your vase.
Use Pure Water
It's best to use purified water with your roses. If you can help it, don't use water that is fluoridated, chlorinated, or has a high salt content. If needed, fill your vase with tap water and let sit out for several hours, allowing the water to "off-gas." You should also make sure the water is room temperature, as water that is too cold or too hot could harm the flowers.
Display your roses in a cool location, and out of direct sunlight. Ambient light is fine, but direct sunlight, as well as hot or cold drafts will shorten the life of your roses.