[Flump]

Hi,would anyone know why my runner bean leaves are turning black? 

[Salmo]

Have they been bruised and battered in the wind today?

[Ivor Backache]

The first leaves are the seed leaves. They are very broad and will die off. The true leaves are different and look like leaflets on a stalk.
My seed leaves are all colours, whitish from frost and generally sad looking. The true leaves appear every five inches or so and the plants are now about 2' tall.
So if you are talking about the first seed leaves, then don't worry.

[Flump]

They are the first two leaves.They looked fine when they were planted and then they developed a blackish pigment.I will wait and see ,thanks.