Nine years ago I received my first rose bush from my father-in-law for the birth of my third daughter. A lovely and meaningful gift that I had difficulty finding a home for the first 4 years of its life, thusly, I transplanted it equal number of times and then somet in its early years. I finally found a permanent home for the poor withered plant and have kept it there since. This (originally) peach and rose tinged hybrid tea rose has taken years recover from the abuse I inflicted on it early on. It is now a healthy hearty shrub that has completely mutated blooms from the original plant I received. It flowers in abundance, yet the color is now a solid deep rose color with a single row of petals. What specifically, of my abuse caused the mutation? Is there any way to reverse the mutation? Thanks.