southernwood

Can anyone tell me where I can find southrenwood (artemisia abrotanum) It says you can start it from a cutting or a root section.I just read that a few sprigs put in a chickens nesting box will rid them of lice,I have chickens no lice but would like to have some of that on hand just in case.

I have artemisia up by the road that I can't get rid of....it was already by the fence when we bought the land....I don't know the variety, but it's a pest.....employs underground runners, & the stuff pops up everywhere....I've pulled it for over 30 years, & I still have it!