Eastern Redbud trees are native to Indiana. According to the Audubon Society, because native plants are adapted to local environmental conditions, they require far less water, saving time, money, and perhaps the most valuable natural resource, water. In addition to providing vital habitat for birds, many other species of wildlife benefits as well.
Beyond that, trees like the Eastern Redbud have vibrant spring and fall colors. Mass planting them (and trees with similar ornamental qualities) along corridors like the river can have a stunning effect, for relatively low cost.