My Endless Summer hydrangea ‘The Original’ is placed in a location where it gets a lot of sun and by 6-7pm gets shade. How much sunlight can they handle?

Full sun in a northern location can be quite different from full sun in a southern zone. You might in your area that your Endless Summer Hydrangea needs some protection from the hot afternoon sun. If both wilting leaves and flower buds are a problem, you can try a couple of things. Either find a new site in the garden with just morning sun or give it extra water. Our Endless Summer Hydrangea planting and care guide has additional tips for keeping your hydrangea healthy and full of flowers.