Where are the bees
We have a small garden near Sunset Highschool in Beaverton. we grow many bee art factors as well as fruit trees and veg. Last year we observed at least 4 sp. of Bombus, at at least 6 honey bees. We had on average 2 dozen at any time. This year only an occasional bee has been seen What can be go in on?
Washington County Oregon
I think it is early in the season; as summer progresses, you will see more and more bumblebees, native bees, and honey bees. Bumblebee queens hibernate, and then in spring must find a nesting spot, and start a colony. This she does while foraging for food for herself and the young bees before there are enough workers available to take over the task of foraging.
While you are waiting for more bees to start foraging, I’m directing you to two websites with more information. Xerces Society has an excellent resource titled, Learn about Bumblebees. This details their lifecycle, foraging, and pollination. The other website is from OSU Pollinator Health. It is simply known as the Oregon Bee Project. It is a website well worth investigating. There lists of bee friendly resources and tools for citizen scientists, gardeners, educators, and more.
May your garden be a haven for bees of all kinds this summer.