Dahlias have been delivered to Europe from Mexico in XVIII century; today them everywhere grow up both on beds. All cultural forms dahlias occur from one kind of a sort of the Dahlia uniting 20 kinds, – dahlias changeable (Dahlia variabilis) and conditionally share on 2 big groups of grades and the garden forms used as ornamental plant for registration of flowerbeds. Sometimes Dahlias temporarily grow up […]