All cultivars were evaluated every two weeks from December 18, 2006 - May 7, 2007. Plants were given a rating from 0-5 (0 = dead and 5 = could not look better in the garden) based on garden performance. Taken into account were plant habit, foliage color, number of flowers, and presence/absence of insects or diseases.

In late March, award winners were selected. A list of these award-winning plants can be found under Awards.