Getting Hydrangeas to flower early

Question

I have bought a number of hydrangea (Macrophylla) pot plants to potentially use as table centerpieces for a wedding in mid July. They are looking healthy and have flower buds starting to show. As July would be early for hydrangeas to flower, would I be able to force an earlier flowering by moving them into a greenhouse? If so, when would be a good time? Thanks

Answer 1

According to my research, you can cajole blooming by stabbing the roots of the hydrangea and by warming the plants as you proposed.
For more information on the care of hydrangeas, please visit the following link:
https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/growing-hydrangeas-hydrangea-care-guide.htm