Hydrangeas can be grown in full sun or partial shade. Keep in mind, however, that many hydrangeas do not like extremely hot conditions, so try to locate them in an area where they can enjoy some afternoon shade. While they can be grown in a wide range of soils, hydrangeas typically prefer rich, moist soil that drains easily. Amending the soil with compost prior to planting is helpful. Hydrangea planting should be performed in spring once the threat of frost has passed. Water thoroughly after planting. You can also add a layer of mulch following hydrangea planting.

Water is an important factor when you care for hydrangeas. They enjoy deep watering at least once a week, especially in dry weather. Hydrangeas also benefit from an occasional boost of fertilizer once or twice a year in spring or summer. Hydrangeas can also be transplanted easily, but this should only be done during dormancy in fall or winter. Be sure to dig up the entire rootball and replant immediately. Since flowers are produced on new growth, you should prune hydrangeas once their blooming has ceased.