Everyone, especially women, love cut flowers but they just don't last very long. Well, in my roaming I ran across a way to keep them fresh longer. And yes, this came from the Grandparent site.
When you cut a flower from its roots, you're separating it from its water and food source. The water part is easy—throw that blossom in a vase! But without resorting to store-bought plant food, how do you feed it? According to Scientific American, lemon-lime soda is a near-perfect solution. Slightly acidic water travels more quickly up plant stems than neutral or basic water, giving flowers a boost of hydration. Plus, one can of 7up or Sprite contains 38 grams of sugar, providing nutrients the flower needs. For the proper ratio, horticulturists recommend 1 to 3 cans of water to every can of soda. Note: Sugar also makes the vase water a friendly breeding ground for bacteria. Keep bacteria at bay by adding a few drops of bleach to the vase solution.