Camellia - Camellias do not need pruning every year. Prune camellias to maintain an attractive form. This usually involves removing any long stringy growth. Occasionally, this sasanqua root stock will sprout a sucker which produces flowers which differ in color and form from the rest of the plant. These suckers should be removed completely or they may soon dominate the plant.
Some camellias bloom in the fall, some in winter, and some in spring.
If pruning is needed, prune fall and winter bloomers in March. Prune spring bloomers after flowers have faded. Hydrangea - Hydrangeas are an exception to the normal May rule of thumb. They are summer bloomers, but should be pruned immediately after flowering. Cut flowering canes back to within two feet of the ground.