Onion Companion Planting Guide

5 beneficial companions • 2 plants to avoid

5
Beneficial
2
Avoid
0
Research-Backed

✅ Beneficial Companions

Cabbage

Olfactory masking, Traditional/Extension

Olfactory masking, Traditional/Extension

📚 Extension
Kale Collards Brussels Sprouts Brassica Oleracea Varieties

reduces host-finding/repellency, review

reduces host-finding/repellency, review

🌿 Traditional
Carrots

Olfactory Masking, Traditional

Olfactory Masking, Traditional

🌿 Traditional
Brassicas

Olfactory Masking, Extension

Olfactory Masking, Extension

📚 Extension
Unknown

Allium cepa) - pest repellence (aphids, spider mites

Allium cepa) - pest repellence (aphids, spider mites

🌿 Traditional

❌ Plants to Avoid

Legume Family

general, extension

general, extension

🌿 Traditional
Legumes

Allelopathy (unproven), Traditional/Anecdotal

Allelopathy (unproven), Traditional/Anecdotal

🌿 Traditional

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