Is tansy poisonous to animals? Last winter, I had it on my list of things to plant in the side yard to keep the waterbugs away. But after reading somewhere online that it was poisonous, I took it off my list.
After running into very large waterbugs every night, I started to reconsider getting some seeds and grow some in hanging pots. But knowing it reseeds and spreads by rhizomes, I am worried about it escaping the hanging planters. I don't even know if tansy would repel the waterbugs. I don't like the spiders that sneak in either, but they don't bug me as much as the waterbugs.
