Ambassador Begonia White"—a perfect 5.0 Weather We had cool and above average rainfall through mid-June, after which it became exceedingly hot and dry. We irrigate, but I believe that many plants were poorly rooted because of the weather near planting time. Many plants performed poorly. Evaluations Evaluations of plant performance were made monthly, for a total of 4 times, during the weeks July 18, August 22, September 19, and October 17. Evaluations ratings from 1-5 were used with 5 being exceptional, 3 being acceptable, and 1 being almost dead. A 0 value indicated death and is used to calculate the average. Plant performance included overall appearance and uniformity, flower performance (size, color, coverage), and resistance to disease, insect, and environmental stress.