u/CheeseCurdChaos

Reddit newbie here. I'm hoping to get some help with a couple hydrangeas. Each year, they grow into fairly large shrubs but have not produced flowers in several years. I read some types flower off old wood so I went a couple years without cutting them back but still no flowers. I've tried fertilizer and soil acidifier and nothing. They are on the west side of the house and get some midday sun. The rest of the afternoon and evening, they are shaded. I'm not sure how to get them to flower or what if anything I should cut back. Any suggestions would be greatly appreciated!