The following evaluation scale was used to rate the trials:
5 — Excellent (No insects or disease present. Plants uniform in flower form, growth habit, flower color, profuse blooming. Overall, the pinnacle of perfection—hard to imagine any area in which the plant could be better).
4 — Very Good (No insects or disease present. Plants fairly uniform in flower form, growth habit, flower color, fairly profuse blooming. Close to perfect, but some areas that could be even better).
3 — Good (Minimal insect and/or disease damage. Plants fairly uniform in flower form, growth habit, flower color, satisfactory blooming. Overall, not spectacular, just an average plant).
2 — Fair (Moderate insect and/or disease damage. Plants poorly uniform in flower forem, growth habit, flower color; poor blooming. Overall, not an appealing plant).
1 — Poor (Extensive insect and/or disease damage. Plants not uniform in flower form, growth habit, flower color; litter to no blooming. Overall, a plant that you would not want in your garden).