Key Takeaways The pH levels of your soil can affect bloom colors, so amend your soil according to your desired color.Avoid clay soils, as hydrangeas require moist, well-drained soil.Look for blooms ...

Hydrangea macrophylla is a water-demanding plant best suited for areas where moisture is easily available. Make sure to water it whenever the plant begins to wilt in the absence of rainfall.

Bigleaf hydrangea responds to several light applications of fertilizer during the growing season. A general-purpose fertilizer, such as 8-8-8 or 10-10-10 applied at a rate of 1 pound (2 cups) per ...