Mostly for future reference, is it helpful to add sugar or other things to the water meant for cut flowers?
There seems to be conflicting data from different sources. See How can I preserve a bouquet of flowers for two days before gifting them?
I've heard that the sugar:
- feeds beneficial bacteria
- feeds the plant (which I know to be wrong, plants don't metabolize sucrose)
- helps prevent air bubbles
But none of this has been satisfactorily been shown true for me. My experience says 'use plain water', and then masteragardeners.org tells you to add all kinds of things to the water. Some people even say a copper penny helps.
Let's get this straight once and for all.