Your findings are interesting especialy the lack of need to replant one for growth to continue. A question though. You said you had a control group where you did not replant a poison. Was this only one location you tried this in and then might that
have been a random occurence if it was.
Anyway the main reason for the post is the thieves have long tried to get a deal on poisons with the rangers but the rangers have continued to fail in all regards. Though I doubt it perhaps a reliable deal can be struck but enforcement will always be
a problem. For if you outguild the guilty they retain their skills and can just become a pacifist and continue.
Written by my hand on the 7th of Ilmarael, in the year 1065.