Eric, I have found that Jaogulan grows as a very reliable, quite expansive perennial in my zone 7b gardens. Currently, the vigorous new growth which pushed forth in February given a couple weeks of mild weather has turned to mush thanks to a couple of hard freezes. This will not slow it down. The
root system is comprised of fleshy, rope-like rhizomes and they are quite resilient. Come June the plants will have grown 6-8 feet and they just keep trucking until our first frosts in late November. I have placed divisions in full sun, part sun, and full shade. All seem to do very well with the only noticeable difference being the predictable morphological adjustments of leaf size, chlorophyll concentration, etc. August brings drought and triple degree temperatures and the leaves in the sunny patches will curl and try to hide, but they recover quickly when the weather backs off even a little.
A good friend with whom I shared a division thought she lost her full-sun planting last year but, lo and behold, it is currently pushing up several vines.
I don't think you can go wrong with this plant. Very high dosages, particularly on an empty stomach, can result in dizziness and lightheadedness. The empty stomach scenario can also lead to intestinal discomfort. Otherwise this is a safe daily medicine which
should help your body balance all manner of stressors. It might even be a strong enough herb to keep Mephistopheles at bay.