The comments section for each plant state "You are posting an informative comment about a plant. If you were wanting to post a comment about a photo, you are in the wrong place!"
People that have been growing daylilies long enough know you can get totally different looks in different weather and growing conditions. Questioning an individual images is fine and opening up a conversation for one keeps those comments attached to the entry, unless the image truly is incorrect, then the coments get deleted with the image.