Consumer ratings of edible flower quality, mix, and color

Two identical surveys were conducted with separate samples to determine consumer perceptions of the quality of five edible flower species. Participants were either members of a class that reviewed the history and uses of edible flowers at an annual, 1-day event (Garden Days) or Michigan Master Gardeners who attended a similar class. Participants were shown a randomized series of projected photographic slides of five edible flower species and asked to indicate whether they found the flower quality acceptable. The slides depicted a range of ratings of mechanical damage, insect damage, or flower senescence on a Likert reference scale (I through 5) developed by the researchers. A flower rated 5 was flawless, while a flower rated I had substantial damage. Nearly one-half of all participants had eaten edible flowers before the study, and 57% to 59% had grown them for their own consumption, indicating many individuals had previous experience. Both samples rated flower quality equally and found pansy (Viola x wittrockiana 'Accord Banner Clear Mixture'), tuberous begonia (Begonia x tuberhybrida 'Ornament Pink'), and viola (Viola tricolor 'Helen Mount') acceptable from stage 5 to 3. Both groups found the nasturtium (Tropaeolum majus 'Jewel Mix') flowers acceptable at only rating 5. Garden Days participants rated borage (Borago officinalis) acceptable from ratings 5 to 3, while the Master Gardeners rated their acceptability from only 5 to 4. Participants also rated flower color (yellow, orange, and blue) as equally acceptable.