Can Aspirin Prolong the Life of Cut Flowers?

The Science of Taking Care of Cut Flowers

Flowers need a floral preservative to stay fresh longer.

When flowers are cut, they lose their source of water, which is the root system. Air begins to move into the tissue causing the cells to plug up. That is why it is important to put the fresh flowers in water immediately. Cut the end of the flower stem off, if it has been awhile since you cut the flower. A good way to do this is under water to prevent the air from reaching the tissues.

Not only does the flower lose its source of water, it loses its source of food. In order to introduce food to increase the life of the flower, you must add a floral preservative to the water. If you buy fresh cut flowers, the floral preservative comes with the flowers in a small packet.

Using a Floral Preservative

Aspirin does not prolong the life of cut flowers.

Aspirin will not work to increase the life of the flower because it needs a complex mixture that can only come from a floral preservative. Aspirin may aid in the pH of the water which in turn will cut down on bacteria growth, but flowers need food, too. Floral preservatives contain sucrose, an acidifier, and a microorganism growth inhibitor. The sucrose or sugar gives energy to help the life of the flower. The acidifier helps the pH of the water because most water is alkaline which will affect the life of the flower. The acidifier also helps the flower keep its color. The microorganism growth inhibitor helps slow down bacteria and fungi.

Other Tips to Help Preserve the Flowers

Cut flowers early in the morning or late afternoon.

If you're cutting the flowers from a garden, cut them in the morning or late afternoon when it's cooler. Take off the leaves that will be below the water level. Do not remove thorns from the stems of roses because it will shorten their life. Cut them at an angle to expose more stem. Place the flowers in warm water to ensure more rapid water intake. Add fresh water daily and change the preservative as needed. Keep the flowers away from heat and drafts. Keep the flowers in the refrigerator if you are not going to be home for a few days. This will slow down water loss.

Using Aspirin

Always use fresh water and a clean vase.

Some people feel that aspirin really does help prolong the life of cut flowers though there is no scientific proof. Many add sugar or 7-Up soda with the aspirin, which of course is the food that the flower needs. Others add a penny with the aspirin which is supposed to cut fungus growth. To ensure that your flowers last longer, use floral preservatives, cut the stems at an angle, add fresh water daily, and change the preservative when needed. Your flowers should last longer and bring warmth to your home.