Varieties of mugwort can be found more or less world-wide, plus it is very easy to grow
Seeds are certainly available and I guess its escaped from plantings in gardens, I'll start paying more attention.http://happyherbcompany.com/mugwort
Mugwort (Artemisia vulgaris), or common wormwood, is a medicinal and culinary herb native to Eurasia and northern Africa.
Mugwort may also refer to:
Plants in the genus Artemisia
Artemisia argyi - Chinese mugwort, used in traditional Chinese medicine
Artemisia douglasiana – Douglas mugwort, native to western North America
Artemisia glacialis – alpine mugwort
Artemisia indica - Japanese mugwort
Artemisia japonica - Oriental mugwort
Artemisia norvegica – Norwegian mugwort
Artemisia princeps – Japanese mugwort ("yomogi"), Korean mugwort ("ssuk"), used as a culinary herb and in traditional Chinese medicine.
Artemisia stelleriana – hoary mugwort
Artemisia verlotiorum – Chinese mugwort
Tanacetum vulgare, also known as common tansy, native to Eurasiahttps://en.wikipedia.org/wiki/List_of_plants_known_as_mugwort