- Brussel Sprouts
Onions deter aphids and Japanese beeltes which means you can use them as companions to plants that often suffer from these pests.
Other companions to onions include:
- All varieties of peas and beans
When you plant onions around vegetable companions, scatter the onion plants to minimize infestation by onion/garlic pests such as onion maggots. Experiment with different combinations and arrangements of companion plantings as borders and backdrops as well as interplanting.
- Broccoli Companions
- Companion Planting with Leeks
- Strawberry Companions
- Asparagus Companions
- A Lemon Tree Guild