Virginia threeseed mercury is a plant whose native range includes the eastern regions of North America. This species has also been introduced to parts of Europe, where it has established itself in the temperate zones. The plant thrives in a variety of habitats within these broad continental areas.

Virginia threeseed mercury is mildly toxic when ingested, causing vomiting and diarrhea. Direct contact with the leaves and stems can trigger dermatitis, characterized by red, itchy inflammation of the skin. Avoid ingestion and contact.

Virginia threeseed mercury is native to North America, where it will often root in disturbed habitats such as woodlands and thickets. It has been recorded as invasive in six countries: France, Italy, Portugal, Croatia, Slovenia, and Switzerland. The weed is considered poisonous to humans due to its sap. Virginia threeseed mercury reseeds itself and consequently spreads quickly. In Connecticut, it has been listed as a species of special concern. When necessary, virginia threeseed mercury should be treated with chemical herbicides to control growth. It can also be mechanically pulled or treated with mulch to obscure the sunlight it needs to grow.

The best season to remove virginia threeseed mercury depends on the plant's life cycle. As an annual weed, it's best to tackle virginia threeseed mercury in early to mid-spring, before its seeds have matured and dispersed. Here are a few organic or interesting methods to remove or control virginia threeseed mercury: