https://pfaf.org/User/Plant.aspx?LatinName=Hieracium+umbellatum
Hieracium umbellatum is a PERENNIAL growing to 0.8 m (2ft 7in). See above for USDA hardiness. It is hardy to UK zone 6 and is not frost tender. It is in flower...
hieracium umbellatumplant databasehawkweedpfaf