The hydrangea is a perennial shrub that flowers in blooms so large it's almost as if you are being given an entire bouquet if you receive one. The Glowing Embers variety of Hydrangea macrophylla is no exception, blooming in 10- to 12-inch, deep-red flowers in early summer. The shrub itself will grow from 3 to 4 feet high and spread to 4 feet. Glowing Embers hydrangea is hardy to USDA zones 5 to 9.
Make sure that your Glowing Embers hydrangea is planted in the proper location. It should get partial sun to shade and be planted in well-drained soil with an acidic pH.
Water your hydrangea until the soil is saturated. In the spring keep the soil moist and then, in late summer to early fall, back off on the watering until the top 1 inch of the soil is dry.
Fertilize the hydrangea in early spring with a 10-10-10 granular formula at the rate of 2 lbs. per 100 square feet.
Check the hydrangea for common pests such as aphids, scales and spider mites. If you encounter an infestation, check with your county cooperative extension agent for the recommended insecticides for your area.