It's a little surprising that the article itself calls out creeping thyme as one of the bee-friendly candidate plants for MN, then, as does the article it ultimately sources from:
Creeping thyme works fine in the Twin Cities metro, at least. It grows very well in our yard, and it's all over our neighborhood.
We also have a big bunch of yarrow planted in our hellstrip. It grows great in those tough conditions. We don't even water it, and it's always full of bees and other bugs.