Q.Hydrangea won’t bloom
We bought it 4 years ago. A potted plant, huge, healthy and in FULL BLOOM! Has never bloomed since! I never bother it when it dies down. I don’t pull out the sticks or anything. Am so disappointed. It was a beautiful plant with coral colored blooms. Grows great, luscious, huge healthy bush…….but no blooms. Please help.

Is your hydrangea still in it's original pot?
Most recommendations for a potted hydrangea call for at least a 5 gallon pot.
Your plant my have to much nitrogen in the soil. This will cause lush green and no flowers.
You need to add phosphorous. Bone Meal is a good way to do so.
Here are a couple of links for you.
https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/hydrangea-not-blooming.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/bone-meal-fertilizer.htm