Planting common mullein (Verbascum thapsus) in your garden may seem appealing due to its tubular flowers and ability to draw pollinators, but it comes with significant downsides.
One major issue is that this plant also attracts wasps. If you're not comfortable having these stinging pests around your yard, growing common mullein is not
Common mullein is classified as a noxious weed in some states because it's an invasive species that spreads rapidly in disturbed soil, making it hard to control once established.
This aggressive plant produces plenty of seeds, and if left unchecked, it can rapidly overtake your garden, consuming vital resources and crowding out other nearby plants.