I planted 7 blueberry bushes at my home in Gainesville, FL (USDA zone 9a), 5 rabbiteye and 2 southern highbush. My soil test came back with a pH of 5.3 but ive lowered further with sulfur. All of them are struggling and not growing. Ive tried what feels like everything: water with rainwater, use kelp, fish emulsion, iron, micronutrients, humic acid, fertilizer, etc.

Nothing seems to work. At my wit’s end and everything else im growing is doing good.

Any suggestions?