Bowman's Hill Wildflower Preserve
The 134-acre preserve near the Thompson-Neely (Upper) section of Washington Crossing Historic Park showcases hundreds of species of wildflowers as well as trees, shrubs, and ferns native to Pennsylvania. Stop at the visitor center and get a map, and then take a guided one-hour wildflower walk ( $3 Available Fri.–Sun. Apr.–Oct.; call to check times) or explore any of the short, well-marked trails (4½ miles in all) on your own. In season, the preserve also sells native plants. Wildflower blooms are seasonal, with mid-April through July a good period to visit, but fall brings colorful foliage. The website has bloom information.