Does anyone know anything about hydrangeas? I have 5 bushes I planted around our deck over the last 4 years and none of them will flower any longer. This is the second year in a row that I have had not one flower. In 2019 I got one flower! I used bone marrow once last year and once this spring, plant food this year, bloom booster last year, and no results. They are old wood growers so I do not prune them. I had them at our old house and never did a thing and had flowers galore. They are planted on the east side of the house but we live adjacent to 18 acres of woods so they get morning sun but only dappled in the afternoon if any as the trees are too full. Any experts out there?