Unusual hydrangea colors

Question

My Endless Summer hydrangeas have blue, pink and mauve flowers all on the same bush. I planted them 2 years ago and this is the first time they have flowered. Would this mean my soil has a neutral pH? It's very odd seeing all these different colors on the same bush!

Answer 1

Iron will change the color of a hydrangea sometimes but not all the time, it depends on ph and if it needs it or not.

Probably what you are seeing are the new blooms that start out a different color that the  mature blooms.

As you shrub grows it will produce more blooms at once and it wont be as noticeable.

Answer 2

Well, since pH and mineral content of the soil can affect different plants, this may actually be a graft hybrid, or may have been more than one seedling that grew together creating the situation that you have.  Another possibility is the size of the bush and what it's root ball encompasses.  If part of the root ball comes into close quarters with different minerals and pH contents (closer to an evergreen, or metal fencing that makes contact with the ground, the part of the bush supported by that group of feed roots can have a different colors.

A Master Gardner that I knew once played with poking different metals into the ground around a large, older bush to encourage different shades across the bush.  He found that by grafting different varieties on to it, he got much more drastic colors off the bush.

Answer 3

it probably means your soil has alot of different ph levels. since it doesnt happen often i guess it must be a pretty nice plant and different from other hydrangeas

Answer 4

whenever my dad wanted to change the colour of his hydrangeas he would push a rusty spike or two into the ground beneath it.