If you don't have suitable soil, simply grow blueberries in a pot containing ericaceous compost, giving the plants a high potash feed (such as tomato feed) occasionally during the growing season.
then the soil is not acidic enough for blueberries. Add an acidic soil amendment such as sulfur or sphagnum peat to the soil to lower the pH before planting. Sulfur is preferred, because the ...
Blueberries require an acidic soil relatively high in organic matter. A soil pH of 4.8 to 5.2 is best for optimal growth. The soil should be tested prior to planting. The pH measurement refers to the ...