Alcea "Alcea" species are used as food plants by the larvae of some Lepidoptera species including "Bucculatrix quadrigemina" and "Vanessa cardui", the painted lady. The mallow flea beetle ("Podagrica fuscicornis") is a pest that makes tiny holes in the leaves. Cutworms, aphids, and capsid bugs use the plant as a food source in hotter and drier conditions. A number of weevils use "A. rosea" as their host plant, including "Rhopalapion longirostre", "Alocentron curvirostre", and "Aspidapion validum". The plants are also susceptible to the pathogenic fungus "Puccinia malvacearum", the hollyhock rust. A hollyhock flower, known in Japan as , was incorporated into
Northwest Flower and Garden Show the display gardens by a panel of three judges. Crystal medals had been given until 2012. The show has other special awards that are given to display gardens by various judges: The Floral Competition is judged by floral professionals for first, second, and third place, along with People's Choice and Best Use of Show Theme. The City Living display awards are: Northwest Flower and Garden Show The Northwest Flower & Garden Show (also known as the Northwest Flower & Garden Festival) is an annual exhibition of horticulture and gardening held in Seattle, Washington, for five days each February. It is