What are good perennials/plants for pollinators?

Bees love any plant that they can get nectar from such as tubes or little flowers. Butterflies like a flat surface that they can get into.

A short list for both bees and butterflies includes: Yarrow, Coneflowers, Blazing Star, Asters, Milkweed, Butterfly weed, Black-eyed Susan and Bee balm aka Monarda.