Clearing up my vegetable plot this autumn I have found several young runner beans have self seeded and have put up new plants currently 10-15cm high. I've not seen this before but we have had a very mild autumn.
Are these viable seedlings and would they produce proper runner beans in the spring? Would they give me a much earlier crop of runners (which would be great as it's always a long wait till August for a runner bean crop).
All this assumes of course I can get them through the winter (I would of course bring them under glass). Am I even going to be able to keep them alive, as runners are not of course traditionally an autumn sown crop?