Prepare for frost
-- Watch for frost. In all but the northernmost Midwest states, the first average frost tends to be mid- to late October. Cover annuals and other tender plants for the first few frosts so you can enjoy them as long as possible.
-- Store tender bulbs. After the first frost, dig up tender bulbs, such as gladiolus, cannas, dahlias and caladiums, that won't survive the winter. Store them indoors in a cardboard box or paper bag filled with sawdust or other dry, loose material. This will let them "breathe" so they'll be ready for replanting next spring. For details, click the link below.
-- Clean up beds. After the first killing frost, tear out annuals and cut back perennials, except those you'd like to keep standing for winter interest, such as sedum and grasses. You can also cut back perennials in the early spring, but you might as well get started on the task now.