Jack Frost and hydrangeas have a complicated relationship, especially in the South, where Jack can make an early or late appearance and then it's 80 degrees F. the next day. Fortunately, we have some ...

Deadhead hydrangeas early; prune timing depends on whether they bloom on new or old wood. Protect plants with mulch, burlap, or cages in cold climates; move potted hydrangeas indoors below 45°F.