A perennial version of annual petunias, wild petunias are native to praries, and have light purple, lavender blooms that attract pollinators.
 
Height: 2-3' (0.6-1m)
Space: 1' (0.3n)
Light Requirements: Full sun to part shade
Soil Requirements: Average, dry, or medium soil
Zones: 4-8
Bloom season: May - October
 
Additional Characteristics:
Attracts hummingbirds
Attracts butterflies