How long do roses last?

It could stay fresh as long as two weeks if it's given the proper care. When you pick a rose, immerse the cut side of its stem in warm water to help it absorb water. When you arrange the rose or roses in a vase or a container, make sure it is very clean and free of dirt or plant matter from the prior use. Cut the stem again diagonally under water and let it soak for a bit. Arrange. There are chemicals that you can get from the florist to help the flowers stay fresh longer. Don't display the flower/s in direct sunlight. Change the water and trim the stem every other day. This way, your flower/s should last at least a week, or two. Good luck.