Posted: 06/08/2015 at 12:40
I have been growing Cobra beans very successfully in a large tub for the last few years - 4 plants giving me 1-2lbs a day for weeks. There is soil in the bottom, topped with new compost every year. They started very well, and early, this year, then I noticed that the leaves on one of them were becoming mottled, changing colour, then falling off. Can someone tell me what's happening - and is it likely to spread to the other plants? My family will be devastated as they've already placed their orders!