wormwood is a common name for a plant of the artemisia genus, as well as mugwort and sagebrush. but there are plants of the artemisia genus that is not called wormwood; for example, tarragon is artemisia dracunculus.

in short, stick to the botanical name if you want to be precise.

So, all Wormwood is Artemisia but not all Artemisias are Wormwood.

If you get Artemisia absinthum you will have the plant generally understood to be Wormwood.

If it is Artemisia vulgaris (aka mugwort), do yourself a favor and do not put it in the ground. It is one of the plants I curse and the list of plants I curse is a VERY short list indeed. Chances are that it isn't mugwort if it was called a "wormwood" but I just wanted to offer up a word of warning just in case.

FataMorgana