Is the root system of poinsettias invasive if planted in the garden?

Poinsettias (Euphorbia pulcherrima) are not considered invasive plants in most regions. Their root systems are typically not aggressive, and they do not spread uncontrollably like many invasive species. However, they can be perennial in warmer climates, and if grown in a garden, they may reseed or spread through cuttings. It's best to monitor their growth and manage them accordingly if planted outdoors.