Can’t believe I’ve been doing this wrong this entire time

Soil pH plays a significant role in the availability of nutrients to hydrangeas. These plants are unique in that their bloom color can change based on soil pH. Acidic soils (pH below 6) produce blue flowers, while alkaline soils (pH above 7) result in pink blooms. Ignoring soil pH can lead to nutrient deficiencies and affect bloom color. Regularly testing your soil and adjusting pH as needed is essential for healthy hydrangeas.

Different hydrangea varieties have different fertilization needs. For example, bigleaf hydrangeas (Hydrangea macrophylla) are more sensitive to soil pH changes than panicle hydrangeas (Hydrangea paniculata). Understanding the specific needs of your hydrangea variety will help you tailor your fertilization approach for the best results.