Please inquire before your departure about the permitted goods and quantities, which may be imported free of charge to Germany:
If you have more than the permitted duty-free allowances with you, please use the red exit (goods to declare) when passing through customs and declare the goods. Goods intended for commercial or trading purposes must always be declared regardless of their value. This also applies to goods subject to restrictions (e.g. narcotics, weapons, ammunition and protected plant and animal species, parts thereof or goods produced using such species).
For the import of plants and plant products for private persons - as for commercial consignments - the regulations of the European Union apply. This also applies when private individuals carry the goods as luggage. There are no exceptions for small quantities. Please inquire about the applicable regulations for importing plants and plant products before you leave.