 The study examined flowering, nectar production, and sugar content of three Campanula species, C. persicifolia L, C. glomerata L, C. tracheleum L, during the 2012-2013 seasons. The flowers of all studied Campanula species are protandrus, with C. glomerata continuing to open until 16.00 GMT plus 2H. The flower lifespan differed between species, with C. persicifolia having the longest at CA 5.5 days and C. tracheleum lasting 3.0 to 3.5 days. The male phase was shorter than the female phase in C. persicifolia and C. glomerata, while it was equal in C. tracheleum. Female biased nectar production was evidenced, with the amount of nectar accumulated at the female phase reaching 70-87% of the maximum nectar, produced by a flower. The total sugar yield for the studied species is low compared to other herbaceous meadow species but diverse insect visitors, make them suitable for supporting pollinators in home gardens or idle lands. This article was authored by Monica Strzalkowsk Abramik, Yasik Jachala, Malvorjata Jassin, and others. We are article.tv, links in the description below.