Blueberries prefer a pH between 4.5 and 5.5.
Use a bark based planting media making sure that no lime or dolomite of any type has been added.
Recommended Soil Mix/Media Recipes:
With Perlite or Pumice:
80% - Medium/Coarse Fir Bark*
10% - Peat
10% - Perlite or Pumice
Without Perlite or Pumice
85% - Medium/Coarse Fir Bark*
15% - Peat
*Pine Bark also acceptable - Avoid Cedar
Depending on availability and cost, other options for media mixes might be used.
Soil Mix/Media Guidelines
Fall Creek’s Suggestion Soil & Water Parameters
4.5 – 5.5
5.5 – 6.5
100ppm or less
Sulfuric Acid, Phosphoric Acid or Citric Acid to lower bicarbonate level
Many growers use a slow release fertilizer as a top dress or incorporated into their bulk blended mix.
Multi-Cote Slow Release
Timed for region: 3, 6 or 8 month
Low rate incorporated per label per cubic yard; medium rate as a top dress
Saturated media extract (SME) Preferred soil testing method