Pick a sunny site with good drainage. Prepare the planting hole about twice the diameter of the plant's pot. Dig and loosen the soil to a depth of eight to ten inches, mixing in lots of well-rotted manure or compost. Hardy mums generally don't overwinter well although some gardeners have had success in getting their plants to bloom a second year. The trick seems to be planting in well-drained soil, cutting back the stems to ground level after bloom, and mulching generously in late October.
Early fall is the time to divide bearded irises, peonies, and daylilies.
Dig up corms of gladioli, dahlias, and cannas. Allow to dry completely, then store in a cool, dry location for replanting next season.