Definition of Companion Plant:
A companion plant is any plant that benefits another kind of plant that is also growing in proximity. Benefits may include:
[Lowell2022, loc 138]
- Attracting beneficial insects (that kill pests or pollinate)
- Distracting harmful insects (by releasing various odors)
- Decoying harmful insects away (trapping)
- Improving nutrition (by fixing nitrogen)
- Providing shade
- Providing ground cover
- Suppressing weed growth