Q.How Long It Takes for Hydrangea to Change Colour? Can It Change Quickly?
I want to do some experimenting on changing hydrangea colour. If the tree is already grown, can i still change the colour of the flower?
Heather
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on November 25, 2010
Yes, you can change the color at any time. This article will help with how to do that: https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/change-hydrangea-color.htm
It normally takes about a season to change the color.
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