One Bush, Many Colors
Blue hydrangeas are among my favorite garden plants. Hydrangeas are very sensitive to soil acidity. When I purchased this bush, the flowers were deep blue, but have come up pink every year afterwards. This year, after flowering had already begun, I added soil conditioners (traditionally aluminum sulfate is used) to lower the pH of the soil, making it weakly acidic. The hydrangea responded, with new buds producing a lavender/light blue flower. The pink flowers had already blossomed and the effect on them is minimal...the result, a hydrangea with both pink and blue flowers.
One Bush, Many Colors
Blue hydrangeas are among my favorite garden plants. Hydrangeas are very sensitive to soil acidity. When I purchased this bush, the flowers were deep blue, but have come up pink every year afterwards. This year, after flowering had already begun, I added soil conditioners (traditionally aluminum sulfate is used) to lower the pH of the soil, making it weakly acidic. The hydrangea responded, with new buds producing a lavender/light blue flower. The pink flowers had already blossomed and the effect on them is minimal...the result, a hydrangea with both pink and blue flowers.