If you get them in your mailbox don't plant them, warn agriculture officials. The unidentified seeds could be an invasive species.

https://www.king5.com/mobile/article/tech/science/environment/washington-residents-receive-mysterious-packages-of-seeds-from-china-possible-invasive-species/281-13cf55dd-d667-4f3c-8011-99c60a4c9bc9