Are purple loosestrife plants poisonous

Purple loosestrife (Lythrum salicaria) is not considered poisonous to humans or animals. However, it can be invasive, outcompeting native plants and disrupting local ecosystems. While it is not toxic, ingestion in large quantities may cause gastrointestinal upset in some cases. It's best to handle the plant with care if you have Allergies or sensitivities.