Then, put the flowers in a vase with water, and the water should not pass through the mosaic to prevent the mosaic from rotting. Before putting the water into the vase, put a piece of ground aspirin so that the flowers can last for another 7 days.
Finally, change the water every two days. When changing water, you should also clean the flower branches soaked in water. Vases should also be cleaned to prevent fungi. Don't forget to put aspirin in the new water.
A watering can sprays a small amount of water on the flowers every day.
If you want to keep it for a while, buy an unopened flower and make sure it is lush.