There are two geomorphic settings located within the Hartman Reserve, the upland and lowland areas. Both have characteristics unique to their specific environment. The lowland is the much larger of the two and is primarily part of the floodplain. In this part of the Reserve you will find typical lowland forest species, such as box elder, honey locust, American and cork elms, hawthorn, Kentucky coffee tree, willow, cottonwood, butternut, and black walnut. The upland area is located primarily in the southern part of the property. Most of the vegetation in this area is common in most deciduous hardwood forests. These species include: basswood, irons wood, shagbark, hickory, sugar maple, red and white oaks, and white ash. The forest is more congested in this area due to the nature of the lowland area.
There is an array of wildlife in the Hartman Reserve. Its inhabitants include white tail deer, raccoon, opossum, red fox, cottontail rabbit, fox and red squirrels, and woodchuck. The park is also a noteworthy area to view birds in their natural habitat. During migration seasons, many species of birds will make a short stay in the park area.