The honey bees have been gathering around this plant, Acorus calamus in a pot that is submerged in water container since it is a bog plant. Apparently they are searching for food/water but find it interesting that they have chosen this plant and seem very attracted to the plant itself more than the water. Earlier in the year I kept finding them gathering the potted plant Tagetes minuta, spending all day flying back and forth from the pot. Wondering if there is something on the plant and in the soil that they are attracted to. Also finding many bees on the chicken feed, I guess looking for pollen. Maybe they are low on honey or food supplies this winter? It's in the fifties today, after several days of below freezing temps.
Edit to say the plant is dormant right now.