Soak it well ONCE. Yes the plant has been stressed. So soak it well the first time, but do not water too often. This kills more plants than everything else combined. Once soaked, pay attention to how long it takes for the soil to really dry out below the surface. To check this use a long screw driver or even a pencil by driving it into the soil and see if any moisture is deep below the surface. If you can find moisture the plant can too.
Pro tip: the plant roots are ONLY in the spot where they were when you planted. Make sure you are watering them and not just the soil around them. Deep infrequent water is the best. Turn your hose on a trickle and put it right at the base.