The Q&A Archives: When Do I Plant Hydrangea Bushes?

Question: What season of the year should I plant a hydrangea bush? Are there any special soil requirements? There is a lot of clay in our soil, and it tends to be alkaline.

Answer: Hydrangea are best planted in the spring or early summer but can be planted any time the ground is not frozen. I would also steer clear of planting during the hotter days of summer. Hydrangea will grow best in a rich soil. In your case, add organic material such as compost to your planting area. Dig a hole twice as wide and as deep as the shrub's root ball. Break up the soil with a garden fork and work the organic material into the soil. Hydrangea will not tolerate dry soil so be sure the soil never dries out completely. Be sure not to overwater. Hydrangea thrives in full sun to partial shade. The alkalinity of your soil will cause your hydrangea blooms to be pink. If you prefer blue blooms, add aluminum sulfate to increase soil acidity.

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