Not at all aggressive in my yard. I have it in an area that's mostly shady but gets more sun at the height of summer and it gets a little wilty so I wouldn't plant it in full sun in my area unless I were willing to supplemental water (which I'm not :-). HTH

And a Great big WELCOME BACK to you. Great to see you posting. I have a vitex, but I'm not sure exactly which one it is. Here it only gets a about 3-4' tall and pretty well dies back each winter. I'm sure there are some seeds hanging on it yet if you'd like them. Also, I have a club moss, though no seeds. I'm not sure of the name, but if you might be interested in a little plant trade later, I will try to get it identified and attempt to transplant some. It is so pretty in the woods year round here where there is little else green except for the ceders and the invasive honeysuckle. Let me know if you are interested in the Vitex. if so, I'll harvest some. Sue...so glad to see you back

Here is a quick GooglePage I did on this pesky plant: http://westernwilson.googlepages.com/falselamium

I have a patch of it under hazelnuts on the north side of a large tuliptree . It wasn't watered this dry summer , and is looking good .