Growing Blueberries: The Soil pH Problem Nobody Mentions
Most guides list soil pH as one line among many. For blueberries it's the entire ballgame: ordinary garden soil sits around pH 6.5-7.0, blueberries need 4.0-5.0, and get that wrong and the bush doesn't just yield less, it survives, looks fine, and never fruits at all. Here's the acidification you actually need, the shallow planting rule that runs backwards from what you'd expect, and why full production doesn't arrive until roughly year 6.