I planted the hydrangea bushes in the beginning of August and I constantly have to water the bushes or they will droop.
Why Newly Planted Hydrangea Is Always Drooping
Certified GKH Gardening Expert
It's been a really dry summer. Hydrangea need lots of water and newly planted ones need even more. If they are in too bright of sun, there water needs will also be higher. Make sure they are not in direct, bright light and for the next 1-2 months they will need water weekly to help them get established and find their own water with their root system.