The use of plants to provide nectar and pollen to natural enemies via habitat management is well recognized, but the most frequently used plant species are typically nonnative to the area of study. Native plants, on the other hand, vary from region to region and often have no published record of attractiveness to natural enemies. We tested whether floral characteristics alone were good predictors of natural enemy visitation. During summer 2004 and 2005, we measured floral characteristics of 43 native Michigan plant species to determine which characteristics best explain variability in number of natural enemies collected at a plant species. These included: maximum flower height, floral area within a plot, flower color, corolla depth, and corolla width. In 2004, multiple regression showed that floral area explained 31.1% of variation in the number of natural enemies collected at a plant, while corolla width was the only other floral variable that added significantly to the R2 value, totaling 32.85%. As expected, plants with larger floral areas attracted more natural enemies, while counter to initial expectations, narrower corolla width was associated with increased natural enemy visitation. In 2005, we tested the hypothesis that narrow corolla width may result in increased nectar availability due to nectar pooling. By focusing on floral characteristics associated with natural enemy abundance, we hope to develop guidelines which can further refine the search for plants to conserve natural enemies in varied locales.