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.
Hydrangeas are versatile plants that can thrive either in the ground in your yard or in pots. If you plant them in the ground, they'll grow taller and spread wider, giving you truly spectacular blooms ...