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Thanks Buenchico, I could have searched for myself but thought I'd see if there was any AB "personal experience". My beans had already germinated when I planted them, after soaking them overnight and then leaving them for a day or so until shoots were showing. The weather was still relatively warm (for November) at the time and I was hopeful that growth would appear above ground after a week or so - its now been a couple of weeks but they've still got time I suppose.
Interesting to have your input barry1010, OH and I both like them: I grew a small crop this year from some 'out of date' beans but only got a couple of portions worth, so was hoping for better things next year. Yes, the packet suggests that the 'picking time' isn't much earlier than spring sowings, but we shall see (I hope!).