Persicaria polymorpha, or Giant Fleece Flower, doesn’t have showy leaves although you’ll never miss them. IT grows like a big clump right infront of your eyes. It blooms in early summer and goes on into late fall, getting taller along the way. The flowers are pure white and attract a lot of insects. It grows fast and is well behaved in the garden.
I split mine last year to a few clumps and planted them all over the garden.
I am planning to add some to some part-shade beds.
This is one of my favorite perennials.