I think that my one single post to you hardly qualifies as "bugging you." Also, you already posted this once, and are now posting it twice in a couple of weeks. If you aren't having luck here ( and you posted twice so you obviously aren't) then the plant trading forum seems like it would be the best place to get what you want. Why is pointing out an appropriate forum to you considered "bugging you". I thought it would be useful to you.

I LOVE this plant. But as rouge21 said 'give it lots of room.' My plant is 6 1/2 ft tall x 6 ft wide and has to be staked to keep it upright and prevent spawl. It flowers for me from June-August and the white blooms are spectacular. It is the anchor plant for a large garden bed meant to be viewed primarily from our deck so large size and highly visible flowers were a requirement.

Thank you! Last night I dug out the last ones of my Painter’s Palette. Most were amid shrubs. There’s a still a few tiny ones too small to get. I didn’t throw them out, as the leaves ARE pretty. I might try planting them all together as a clump in a different location. See if I can get them to ACT like one plant. Since I got them in a trade as seedlings I am guessing that single unbranched stems are just the way they grow. I think one has to have a large area devoted to this plant so it’s seeding can be all together. I saw a swath of it at a botanic garden once. (like 6 x 6 feet?) But I don’t have space for any swaths! My giant persicaria polymorpha is very easy to get to branch. It won’t produce a lot but some. I just chop that at will to keep it in bounds and shaped. No Japanese beetles this year so far to eat the flowers, so it is the most beautiful it has ever been. The potted Red Dragon I have does have a crown and some branching. Quite leggy, but I have not had it in the sun since I bought it. I will hope it behaves more P. Polymorpha.

The bed where the persicaria is looks a lot worse now... this pic is at least 5 or 6 years old. I am not interested in rejuvenating a mixed perennial flower bed. I appreciate those who have them, but they are not for us. I want to simplify it - prefer groupings - maybe 3 or 4 varieties of plants/shrubs at most. They planted over 10. It was a hodgepodge mess by the time we moved into the place in the spring of 2015