Q.Hydrangea Hasn’t Bloomed.
My white hydrangea has been in the same spot I planted it for 16 years, and has always had several beautiful big blooms. But this year no flowers what so ever, plenty of leaves. Tried feeding it with special food for hydrangeas. Still nothing. It’s in partial sun and shade. Sun is on it from about 2pm till 6pm, but not full sun, the rest of the time it’s shaded, and is right under my small bedroom window. Normally looks beautiful! Anyone able to help?

Certified GKH Gardening Expert
This one appears to be a Hydrangea macrophylla, which will bloom on old wood. This will mean that pruning will have to be done in a manner which will leave plenty of the 2nd year's growth. This is where flowers will come from. If they are pruned just a little too much, they will not flower the next year. However, it is likely to flower next year with less pruning.
These articles will help:
https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/mophead-hydrangea-care.htm
https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/hydrangea-not-blooming.htm