Q.Why my hydrangeas are not growing?
My hydrangeas won’t grow. It looks like a healthy plant but don’t know how to help
Certified GKH Gardening Expert
Perhaps the plants are not in the ideal amount of sun and shade. They may also need to be fed. Here's an article that explains how to fertilize them: https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/fertilizing-hydrangeas.htm
Review the plants' growing conditions with the help of this article: https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/growing-hydrangeas-hydrangea-care-guide.htm