aka The Gardener, aka Garden of Death
How bad is it? It's one of the worse killer plant movies (yes, there are several).
Should you see it? Only if it shows up on late-night broadcast television.
Andy Warhol film regular Joe Dallesandro stars in this film as a South American gardener whose previous clients have all died mysteriously, but a rich woman from the U.S. hires him anyway. He seems to have a mental hold over her, some of his plants emit poison gas and he has an odd ability to converse with flowers. In the end, he turns into a tree.