Because plants, flowers and seeds are freely sold in many countries, you may decide to bring them home as a souvenir. However, because of concerns about foreign pests and diseases on growing plant life, in general, you can only bring seeds into the country.
According to Customs Border Patrol (CBP) of the Department of Homeland Security, seeds for planting and consumption are generally allowed into the United States. However, restrictions differ among countries, so check the consulate of the country from which you are bringing the seeds. The CBP website for agricultural products has a general list of what is permissible (see Resources).
Though seeds are generally permitted, you need to declare them by checking "Yes" on Question 11 of the CBP Declaration Form 6059B.
If you intend to grow the seeds, you may need a plant import certificate from the U.S. Department of Agriculture (see Resources).
If you do not declare your seeds or intentionally conceal them, the CBP may confiscate them and assess a civil penalty ranging from $1,000 for a first offense to $50,000.
Restrictions are needed to prevent foreign pests and diseases from harming U.S. agriculture. In addition, foreign plants may easily overwhelm local ecosystems, killing off native plants and animals.
