To slightly confuse matters, not all artemisias are poisonous. In fact, tarragon (A. dracunculus) is a very popular (and edible) herb. So where does this leave you and your garden? "To be safe, I would suggest that gardeners not plant artemisias other than tarragon in areas with edible crops. As long as gardeners do not ingest any plant part or product of artemisia, they shouldn't have any problems in the garden," says Richard Hawke, plant evaluation manager at the Chicago Botanic Garden. Hawke also warns gardeners to "not use any homemade insect repellent made from artemisia on their food crops." So be careful, but do not be afraid to plant artemisias. There are many beautiful species that have a place in your garden even if they can't be used in edible landscaping.