In Georgia, When Should Hydrangeas Be Fertilized?

Hydrangeas in Georgia require precise timing and the right amount of nutrients for healthy growth and vibrant blooms. To fertilize hydrangeas, they should be lightly dressed with fast-release fertilizer in March, May, and July, spreading it around the drip line of the branches and not the base. Water well, and if the fertilizer is slow-release, lightly cover it with soil to activate it.

In Georgia, the optimal time to plant hydrangeas is during the cooler periods of the year, specifically early spring or fall. The best fertilizer for hydrangeas is a slow-release product that provides essential nutrients such as nitrogen, phosphorus, and potassium gradually over several months. Incorporating organic matter like compost can boost soil fertility and avoid over-fertilization.

The 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, should be applied at a rate of 1 pound (2 cups) per 100 square feet in March, May, and July. Fertilize Hydrangea macrophylla starting in late March, followed by April, May, June, and July. All these types should be fertilized at least once a season in late winter or early spring.

A typical recommendation is one tablespoon of 10-10-10 per foot of plant height in March, May, and July. For Limelight Hydrangeas, feed them twice yearly in April and June with 10-10-10, general-purpose slow-release fertilizer. If the base is too dry, adding water and fertilizer might help revive them. Brown leaves signify an issue with the plant’s health.