FIG. 1 is a top, side and front perspective view of a watering can showing the new design; FIG. 2 is a right elevation view thereof; FIG. 3 is a left elevation view thereof; FIG. 4 is a rear side elevation view thereof; FIG. 5 is a front side elevation view thereof; FIG. 6 is a top plan view thereof; and, FIG. 7 is a bottom plan view thereof.