What is the best pH and why is it important?
Optimum pH will vary from plant to plant, but a pH between 5.0 7.0 is generally accepted as the best range for most plants. The pH of the soil governs what nutrients are available to plants. If the soil pH is above or below the recommended range (5.5 – 7.0), nutrients may not be soluble (absorbable by plants) or they may be so soluble that they become phytotoxic. Therefore, a plant can show signs of nutrient deficiencies or toxicity even when the correct amount of fertilizer is applied to that plant.
