Why Does My Peony Change Its Flower Color?
Although an uncommon occurrence with peonies, a variety may occasionally produce a different colored flower to those typical of the variety or phenomenon known as “sporting”. It occurs throughout the plant world and is caused by a natural genetic bud mutation, which alters some chromosomes changing the flower color. Such changes can be initiated by a number of factors including excessive heat, radiation and pollution or other unknown factors. Some peony varieties are probably more prone to “sporting” than others.
