Blueberries on the bush.
image by Lisa J. Roland: Wikimedia Commons
Blueberries thrive in unique soil conditions that combine richness, high nutrient content and high acidity, with an ideal pH between 4.8 to 5.5. The soil around blueberries bushes should be amended with multiple organic elements to achieve an ideal environment for the roots. Use a combination of soil builders, an acidifying agent, nitrogen fertilizers and mulch to achieve soil that's perfectly suited for a blueberry bush.
Boost soil fertility for your blueberries by adding significant amounts of compost and well-aged manure into the soil. Add several pounds of each for each bush at planting time, or scratch it into the soil's surface in the early fall. Amending the soil with these organic elements will increase its richness and nutrient value.
Amend the soil to boost its acidity. Add roughly 1 lb. of peat moss to the soil for each bush at planting time, or scratch it into the soil's surface after planting.
Feed your blueberries with an organic fertilizer in which the nitrogen component is derived from ammonium sources such as fish emulsion or fish meal. Apply in doses and at seasonal intervals according to label instructions.
Mulch around the base of the blueberry bushes with a 3-inch blanket of organic mulching material each year. Mulching helps retain moisture in the soil and boosts the soil's nutrition as the mulch degrades over time. Use leaf mold, shredded bark or cocoa hulls as mulch materials.