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Good Companions for Onion

Onions repel carrot flies and many pests with their strong scent.

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Carrot
🥬
Lettuce
🍅
Tomato
🌶️
Pepper
🥬
Cabbage
🟣
Beet
🍓
Strawberry
🌼
Chamomile
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What NOT to Plant with Onion

Onions stunt bean and pea growth.

🫘
Bean
🟢
Pea
🥬
Asparagus
🌿
Sage
💡

Onion Planting Tips

Excellent pest deterrent - plant throughout the garden.

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Growing Onion in United States

🌡️
Climate

Highly varied from tropical to subarctic

📅
Growing Season

Varies greatly by zone, generally April-October

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Hardiness Zones

USDA 3-11

Tips for United States Gardeners

Check your local extension office for specific dates. Use zone-appropriate varieties.

Best Planting Months:
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
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USDA Hardiness Zones

Onion grows well in the following zones:

Zone 3 Zone 4 Zone 5 Zone 6 Zone 7 Zone 8 Zone 9