Someone at OH's work gave us a 350g packet of ERO sets, are these winter ones, :-\ mine went in on the 20th Sept, one of my books says WO's can go in Dec latest, but I'm unsure and the ground is very wet. ??? ;D ;D ;D
I'd say certainly here in the wilds... but it has been mild and you are a long way South of here... :-\
I bought some cheap the other day, said planting until end of November. Its only a few days late and very mild. ::) May be they will only be small.