my flowers changed colour

[follyfancier]

I bought some white delphiniums last weekend and have just noticed today that they have gone BLUE !!! do they normally change?
they are in a cut glass vase and tap water

[rowanwitch]

some plants change colour as they fade e.g some roses start yellow and go through a range of shades before they fall... Delphiniums often change as the flowers mature I am guessing they have gone either pale blue or pale lilaccy blue

[Tilly2]

Delphiniums have to be blue. They are lovely, like cornflowers.

My lemon lupins went white as they matured. Still nice though.

[follyfancier]

they were quite a dark navy blue when I threw them out, I thought it was very strange because white flowers usually go brown when they fade