Why do fushias change colour?

I was given a fushia last year that was flowering with dark pink flowers. I cut it back for winter and this year it has flowered with white flowers. I have not repotted or added any soil to the pot. Can anyone explain the colour change?

Why do fushias change colour?
May be the problem is that you never repotted it.

Some colours need certain minerals in the soil which may be exhausted.

Another possibility is that you cut back to hard, into the rootstock of a plant that was grafted, so now you get the flowers of the rootstock.
Reply:coz iit can
Reply:The colour pigment reacts to the pH value of the soil (acid/ alkili). Before it was given to you, it would have been in acidic soil, but yours is probably quite neutral.
Reply:Just a comment in passing: the fuchsia is named after a German botanist called Leonard Fuchs. I find that remembering this helps me spell it!
Reply:they revert back to their original colors,a lot are grafted to make all these new colors but they then revert back to their narural color

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