flowers changing colour

Question

I have planted a variety of plants in clay soil which have changed colour from the expected/original red to pink i.e Lupin Red Castle, Achillia red, and a miniture rose which was red in one bed and has now turned pink when I moved it. Also a dahlia that was purple has now gone a blush pinky colour.

However the cosmos I planted have come out as they should and are in the same bed.

Any ideas what could be happening here?

Answer 1

There are many reasons this can occur. Mostly environmental, though. Here is an article that will help you pinpoint the exact cause: https://www.gardeningknowhow.com/plant-problems/environmental/fixing-color-faded-flowers.htm