Young "Golden Arrow"
I won't let up until each of you has one of these persicarias in your garden! :) (I have 5 plants).
This one was planted last August so this is its first full summer in our garden and still it looks just wonderful (if I do say so myself).
This persicaria is completely well behaved and can take a lot of shade and still be successful. Its foliage just lights up a shady location.