In mild climates in fall, most nurseries sell delphiniums, foxgloves, and verbascum. Hollyhocks may not be available until spring.
Wayside Gardens (800/845-1124 or www.waysidegardens.com).
Weiss Brothers Perennial Nursery (530/272-7657 or www.plantperennials.com). Ships only until October 29 in fall; spring shipping begins February 26.
Renee's Garden (888/880-7228 or www.reneesgarden.com).
Thompson & Morgan Seedsmen, Inc. (800/274-7333 or www.thompson-morgan.com).