Revive a dying snowball hydrangea plant by following a few simple steps, such as regularly watering the plant, dealing with possible pest infestations and treating poor soil. You need garden clippers, a rag, denatured alcohol, baking soda, horticultural oil, a garden sprayer and dishwashing soap.Continue Reading
Water your hydrangea plant more often to compensate for the summer heat that causes wilting. Give your plant at least 10 gallons of water every week using a slow, steady drip system. Increase water application if wilting continues.
Inspect the hydrangea leaves for any pest infestation. Powder on the leaves is a sign of mildew, and you need to water in the morning and evening to decrease humidity. Remove infected leaves, and spray the plant with 4 teaspoons of baking soda and 2 tablespoons of horticultural oil mixed in a gallon of water.
Treat the hydrangea for an aphid infestation if the leaves have small, yellowish insects on them. Wash the leaves, and spray them with a mixture containing 2 ounces of dishwashing soap and 1 gallon of water.
If your plant continues to wilt and has yellowing leaves, treat the soil with an iron supplement. Add 2/3 ounce of chileated iron to 10 gallons of water. Apply the iron supplement only to the roots of the plant.