Fertilizing hydrangeas is crucial for their growth and health. To ensure optimal results, use a balanced fertilizer like 10-10-10 once per month during the growing season (April through September). Avoid fertilizing too late in the season as this can stimulate new growth that may not have time to harden off. There are two specific times to fertilize hydrangeas in Alabama: immediately and at additional intervals.
For bigleaf hydrangeas, light applications of a general purpose fertilizer like 10-10-10 should be applied. For hydrangeas planted in ground, it is important to fertilize panicle hydrangeas around late March, while bigleaf hydrangeas respond to several light fertilizer applications during the growing season. Soil test recommendations should be divided into three categories.
After pruning, fertilize hydrangeas in the spring to stimulate new growth. Blooms will grow on the plant’s new growth during the spring. Hydrangeas benefit from fertilizer applied in mid- to late spring and at additional intervals. Fast-release fertilizer should be lightly dressed in March, May, and July, spreading it around the drip line of the branches.
It is best to plant hydrangeas in either spring or fall, as they establish better in milder weather than in extreme heat or cold. Choose the right fertilizer and maintain a consistent schedule to ensure hydrangeas thrive.
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