Endless Summer Hydrangeas planted in May and the flowers are turning brown. Please help.
Certified GKH Gardening Expert
This could be a number of things--too little or too much water, over fertilizing, leaf scorch (if planted in too much sun), etc. Typically, in hydrangea, this is caused by a watering issue. Has it recently been planted? If newly planted, there may be gaps in the soil around the root ball that is drying out the roots. I would tamp down the soil around the plant. I would also recommend upping the watering. Hydrangeas need to be kept unifromaly moist, but not soggy. It is a good idea to check the soil with your finger and water if it feels dry to the touch about an inch or so. If it's still moist, do not water. You can remove the browning leaves and they should regrow once the plant recovers.
In addition, it could be suffering from shock. This article will help with that: https://www.gardeningknowhow.com/plant-problems/environmental/learn-how-to-avoid-and-repair-transplant-shock-in-plants.htm