I'm Really Worried I Have Upset My...
Family & Relationships0 min ago
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For more on marking an answer as the "Best Answer", please visit our FAQ.Hang them upside down, still on their stems, in a dry place out of sunshine (which will fade them). Be warned that white roses go brown and coloured roses darken.
Alternatively, put them in Borax (which I think you can still get from the Chemist) - it's a white powder. Ensure you get the powder inside the flower to keep it's shape, then just leave them for a while and the borax will remove all the moisture. I think the colour lasts better with Borax. Hope this helps!