This list is for a reference.  No endorsement or recommendation is intended.

            Prairie Nursery Wildflowers & Native Grasses

                Burpee

            Johnny's Seed Selection

            Park's Seed

            Richter's Herbs

            Seed Savers Exchange

            Stokes Seeds

            Territorial Seed Company

            Missouri Wildflower Nursery

             Baker Creek Heirloom Seeds

            The Cook's Garden

            Henry Field's Seeds

            Harris Seeds

            Nichols Garden and Nursery

            Thompson and Morgan

            Bluestone Perennials

            Cyndi's List of Garden Catalogs

            Backyard Gardener