two bumblebees gathering pollen on purple bee balm flowers in a garden

america background balm bee bergamot blooming blurred bokeh bombini bombus botany bumblebee bumblebees close conservation entomology floral flowers focus foliage garden gardening gathering horsemint hymenopterans insect insecta lamiaceae leaves macro mildew monarda nature nepetoideae oswego outdoors pollen pollination purple selective shot summer tea two usa wildlife wisconsin