Poisonous plants are a major cause of economic loss to the livestock industry. Two poisonous plants common to Oregon are poison hemlock and Western water hemlock. Ingestion of either by humans or livestock typically results in death.
Companion planting can attract beneficial insects, serve as a trap crop for pests, improve soil health, and much more. This list was created by a retail nursery employee and offers some suggestions of herbs and flowers that can be used as companions to vegetable crops.