Dydd neis arall heddiw. Dim rhy oer, dim yn bwrw glaw. #CastanwyddenEccles Another nice day today. Not too cold, not raining. #EcclesChestnut

I have a few primulas in pots and I notice that the red ones with yellow centres often get the red part nibbled away (I assume nibbled?) Is there something that only likes the red bits of petals?