Lasting Blooms: Which Cut Flower Lasts the Longest?
Grade Level: K - 5th; Type: Life Science
We will be observing the condition of various blossoms over a two-week period to determine which flower lasts the longest.
- Single stem cut flower: Roses, Lilies, Daisies, Mums, Carnations, Gladiolas, Orchids, Tulips, etc. Some of these can be found in supermarkets. Special varieties are available at a local florist.
- Empty water bottles, cleaned. The water bottles should be the same to eliminate variation.
- Camera (optional)
In this example we will use 4 flowers. You can choose your own varieties and conditions.
- Using room temperature or cool tap water fill each water bottle with the same volume.
- Cut each flower stem at 10 - 12" from the base of the blossom at an angle. Depending on the height of your water bottle the height may vary but always cut each stem at the same distance.
- Place each stem in its own water bottle and place it in the same area making sure each flower gets an equal amount of light.
- Record the date and appearance of the flower. If you have a camera available take a photograph.
- Does it look like a freshly cut flower?
- Is it starting to dry out?
- What color is the blossom? Are the petals beginning to brown?
- Count the number of petals. Are any petals falling off?
- Everyday record the date and the appearance of the flower.
- Is it healthy like it was just picked?
- Is it starting to wilt?
- Is it starting to turn brown?
- Are petals falling off?
- Is it wilted?
- Change the water after recording your findings. Keep the temperature and volume of water the same for each flower.
- Repeat for 13 days or until all flower blossoms have wilted or died.
Terms/Concepts: Why should flower stems be cut at an angle?; What is the best temperature of the water?; Does changing the water regularly increase the life of the flower?
- National Audubon Society Pocket Guide to Familiar Flowers: East (The Audubon Society Pocket Guides), National Audubon Society. 1987.
Warning is hereby given that not all Project Ideas are appropriate for all individuals or in all circumstances. Implementation of any Science Project Idea should be undertaken only in appropriate settings and with appropriate parental or other supervision. Reading and following the safety precautions of all materials used in a project is the sole responsibility of each individual. For further information, consult your state’s handbook of Science Safety.