Every season of The Poison Tree ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of The Poison Tree!

Karen Clarke was an ordinary girl thrown into an extraordinary world, as she first meets the glamorous Biba and her brother Rex in one long summer of love, but quickly becomes tangled up in their tragic family history with the romantic idyll turning into a nightmare – one that haunts her to the present day. She will go to extraordinary lengths to protect her family and the secrets that she keeps from them.

The Best Seasons of The Poison Tree

Every season of The Poison Tree ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of The Poison Tree!