Kyushu, a Beautiful Hydrangea

I am absolutely smitten by this beautiful Kyushu Hydrangea. The open panicles are so elegant and lovely, with a nice elongated shape and a mix of sterile and fertile florets. Some say the panicles develop a slight pink hue in the fall, I've read elsewhere that they fade to a pale yellow. Perhaps like other Hydrangeas it is dependant on soil pH? Due to my soil being quite alkaline I did mix in a healthy amount of peat moss. Since this is my first season with Kyushu, it remains to be seen what the fall colour is like.