Hosta Autumn Frost will form a small to medium mound at maturity with 12"-18" in height with a spread of up to 24" at maturity. It emerges in spring with powder blue, heart shaped leaves with wide bright yellow margins, which gradually fade to white as the season progresses. A truly magnificent Hosta and that makes a striking specimen, a superb sport from the ever popular Hosta First Frost. A Hosta that tolerates both a certain amount of sunshine as well as being slug resistant. The pale purple flowers are not scented, but stand just proud of a well formed mound on 20" scapes, in July. RHS Award Of Garden Merit. A very popular Hosta.