|MadSci Network: Earth Sciences|
Some say that aspirin does help increase the longevity of cut flowers although the differences with the control group (flowers treated with only water) are subtle. In theory aspirin should work because it acidifies the water enough to prevent the growth of bacteria in the water which in turn decrease the longevity of the cut flowers. Commercial cut flower foods do not contain aspirin because the differences are minor/barely noticeable. A book on cut flower care by Vaughan (1988), in fact, lists the use of aspirin as a myth in terms of increasing cut flower longevity. Others claim the same thing. Aspirin does not really help cut flowers live longer. Vaughan, MJ. 1988. The Complete Book of Cut Flower Care. Timber Press. http://freshflowers.net/pages/copy
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