Invasive plants are a real and growing risk to native biodiversity. They can displace less competitive plants, disturb ecological networks, reducing resources for some species and increasing them for others. Most plants are introduced to new areas by human activity, often from gardens. Invasive plants are vigorous and their control is difficult, often impossible, so reducing the rate at which they are spread is important. To raise awareness of the issue in Belgium we have created an infographic to help people recognise some invasive plants and to explain what people can do to ameliorate the situation. ; We acknowledge the support of the Belgian Science Policy Office under the TrIAS project (BR/165/A1/TrIAS), Alien-CSI COST Action (CA17122), supported by COST (European Cooperation in Science and Technology) and the Green Pioneers project of Meise Botanic Garden, a citizen science project financed by the Flemish government, Department of Economy, Science and Innovation (EWI).