The topic of invasive species is complicated and continually changing, particularly as climate change and human activity continues to shift ecosystems. The company that makes our paper is careful to ensure that the seeds are approved for planting in most regions. However, every state and country has their own definitions and regulations regarding exotic species. The Bower Studio is not responsible for being aware of all local and regional definitions and regulations. Although the seed mix contains non-native species, the species included in our plantable cards do not possess invasive growing habits and pose little threat of uncontrolled spreading (in most regions). The seeds are approved by both the United States Department of Agriculture and the Canadian Food Inspection Agency as suitable for planting in the US, Canada, and other regions. Many garden plants, such as those in our seed cards, are non-natives (including commonly planted vegetables, herbs, and annual flowers like marigolds, apples, roses, or petunias), but they are generally considered safe to plant with little risk to the native environment. You can read more about invasice and non-native plants here. Furthermore, we sell worldwide and it is simply not possible to have plant species native to all regions, even within a single country. If you are concerned about a particular species in one of our cards, we welcome you to contact us. Due to USDA and import regulations, we are not currently able to alter the seeds included in the papers we use for our cards.