West Midlands, United Kingdom

I have a few Carex Oshimensis Evergold plants in the garden which always seem to form rusty coloured markings on the leaves. They died back in winter but the new leaves forming now also have brown marks on them. Am I doing something wrong? They are kept in moist conditions, some in shade and some in semi-shade.
I have cut back all the dead leaves this week.

Thank you in advance...I know someone wil know!

• 9 Apr, 2010