Hi Wally - are you talking about chocolate spot on the leaves, or a little black line on the edge of the bean itself?
If the latter, it's a mark that appears on slightly older beans (means they're a little 'over ripe' so pick them earlier in future). No problem, if the beans are a little 'floury' in taste then cooke them and pop the little pale green skin jackets off before serving (a bit time consuming but worth it).
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
I have to surround mine with a lowish barrier of heavy duty plastic sheet, dug into the ground. If I don't, field mice will get them as soon as a shoot emerges.
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Hi Wally - are you talking about chocolate spot on the leaves, or a little black line on the edge of the bean itself?
If the latter, it's a mark that appears on slightly older beans (means they're a little 'over ripe' so pick them earlier in future). No problem, if the beans are a little 'floury' in taste then cooke them and pop the little pale green skin jackets off before serving (a bit time consuming but worth it).
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.