By our calculations, you should look at sowing Forono about 14 days before your last frost date.
Forono is an Italian heirloom, ancestor of most modern cylindircal beets.
Characteristics: half long, cylindrical shaped with dark-red interior and almost no zoning; excellent for canning and freezing. A cylindrical-shaped, easy-peel, sweet beet.
Forono is the ancestor used to breed just about all of the more modern Italian hybrid cylindrical beets.
Used to produce the variety named Formonova, in July 1963.
Formonova was hybridized by Breeder: L.Daehnfeldt, Odense, Denmark.
Foronova
Formonova’s ancestor
1 http://www.johnnyseeds.com/p-7969-forono.aspx