Hi Yadira. Fall care for both roses and hydrangeas are pretty much the same initially: remove (deadhead) any faded flowers in fall; remove any fallen leaves to prevent diseases and insects from overwintering (disease-free leaves can be composted); stop feeding plants in fall; keep watering plants up until the ground freezes; and heavily mulch (2 to 4 inch layer) the ground around your bushes after the first hard freeze or two.
For hydrageas, pruning and winter hardiness all depends on the type of hydrangea you're growing. In general, hydrangeas that bloom on new wood can be pruned hard when dormant in winter or they freeze to the ground; hydrangeas that bloom on old wood will be disappointing in cold winter climates as the "freezing to the ground" part will greatly diminish next seasons blooms. If you are growing less hardy varieties in a cold climate, wait until after a hard freeze or two, then create a chicken wire cage around the bush and fill the cage with autumn leaves, loose straw, or evergreen boughs. For roses grown where winters are cold, you can mound soil around the crown area and base, or offer the same "cage protection" as for hydrangeas. If you live in an area where climbing roses need protection, remove the canes from trellises, lay them in a trench, cover with soil, and top with a layer of straw or evergreen branches. Happy gardening!