Raspberry and Onion

We have a new mason bee visiting the balcony. She’s not building her nest in our mason bee houses though (we have a detached house and a condo now), she’s flying away after foraging, much to the cat’s surprise.

She always visits the white flowers of the raspberry plant first, and then the lilac chives flowers. I wonder if the pollen in the nests, where the little bees are going to spend the winter, will smell like raspberry and onion.