With proper care, tulips can brighten your vase for 7 to 10 days. However, the actual lifespan of tulips in a vase can vary depending on factors such as the freshness of the flowers when cut, the environmental conditions, and the tulip variety. To extend their vase life, change the water every two days, recut the stems, and add flower food or a pinch of sugar to the water. Placing the vase in an excellent location away from direct sunlight and heat sources will also help preserve its beauty.