Companion Planting: Scallion (Green Onion)
Allium fistulosum
Spacing: 9 per square foot.
Plant these nearby
- Carrot — Classic pairing — onion scent deters carrot rust fly, carrot scent deters onion fly.
- Lettuce — Space-efficient interplant with non-competing root depths.
Keep these apart
- Bush Beans — Alliums inhibit nitrogen-fixing bacteria on bean roots.
- Pea — Alliums inhibit nitrogen-fixing bacteria on pea roots.