Q.How do I get green hydrangeas?
How do I get green hydrangeas? My daughter had green hydrangeas in HDR wedding bouquet and I want to replicate that for her anniversary in April.

Certified GKH Gardening Expert
Actually, all hydrangea flowers are green! The sepals will often turn colors such as white, pink, and blue, but will always start, and end green. There is a variety that is called Limelight, that will bloom later, and retain its green for longer. This would be where I would start.
Here is an article to help explain what causes the green flower, and how you can keep it green: https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/green-hydrangea-blooms.htm