I live in northeast Michigan and have 3 hydrangea bushes, 2 facing west full sun in the morning only, shade in the afternoon and 1 facing east, shade in the morning, full sun in the afternoon and evening. I have beautiful foliage but no blooms. I fertilize, I water, I fretilize, I water. I was told not to clip down in the in the fall and only to clip off dead stems in the spring. What am I doint wrong????