I have one, in the ground against a wall, and its young leaves have
been a bit yellow, but they have recovered. This year, it's damn
near chlorophyll-free. I have tried giving it Epsom salts, with no
effect, and have just watered in a lot of them. But I am pretty
sure that it is viral. Has anyone had this before, and is there
any hope?

http://i64.tinypic.com/14m56vb.jpg


Regards,
Nick Maclaren.