I've been hardening off my Cobra and Moonlight beans all week and today took the risk of planting them out in their wigwam tubs - albeit well-wrapped in fleece for a few days!
Last night the low was 11.2C in my sheltered garden here in the S.W. and now at 11pm it is still 13C, so I think (and hope!) that the nights will no longer get too chilly for the beans. Haven't planted out anything else yet though.
Tricia