Is there a reason there are grapefruit slices in my vase of flowers?

Question

There are grapefruit and lemon slices in my vase of gladiolas, I was wondering if it was just for decoration or if there is a reason for it.

Answer 1

It really will keep cut flowers from wilting as fast.  Cut flowers will continue to draw water up the stems and like most citrust fruits, grapefruit are natural anti-oxidants, basically working the same way light misting of lemon juice keeps apple slices from turning brown, the juice from citrus fruits will also help flowers hold their color and shape longer.

Answer 2

Just for appearance.

Answer 3

Sounds like decoration.... I've seen lemon slices as well as whole lemons used.  Sounds pretty!