Usually toward the end of the growing season, the hydrangea flowers on the bush in my front yard will take on a greenish hue. It’s a very odd color for a flower, and has proved to be a popular choice in my wedding store for invitations and matching stationery and stickers.
In the photo below you can see that the bloom has blue, green and pink petals. These are the interesting colors that blend on the flowers at the end of summer. I almost enjoy them more than the bright blues of the early buds.