Swedish Bitter where from to get original 11 plants and how to make it at home

This is a mix of plants 100 g for 1,5 liter swedish bitter following the recipe of Maria Treben what i mix with 2 bottles of 38% vodka with no flavour in a wide necked 3 liter bottle (a 2 liter one is enough) Now open the packet of plants and pour it in to the bottle use a sheet of paper to get the plants easier in the bottle if the neck of the bottle is not wide enough After that pour the vodka on the plants if you want it to go faster take out the plastic from the neck of the vodka bottle that way the vodka would pour out mutch faster Shake it up once daily during 14 days and after 14 days filter it The elixir is then strained and poured into small bottles,stored in cool place. This way it can be kept for many years. The longer it stands the more effective it becomes Here i bought the plants: http://tinyurl.com/swedishbitter