Definately worth a go.Not much to lose, at worst you will have added to your biomass for composting!!
Noting that you are in temperate Somerset, you stand a chance, pollination might be an issue, so 'companion plant' with something that may be attracting bees etc in October ( heather?), Any chance you have a large poly cloche or can make one?, to give some shelter from the extra rain forecast this year( see Jetstream)
Soak seed, get them going quick, grow on , you have to catch up /extend the season by 2-4 weeks in my view. Good luck, please report.