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How Far Apart to Plant Onions?

Space Onions 4 inches apart within the row, and keep 12 inches between rows. Stop watering once tops flop to cure the bulbs.

Plant spacing4 in (10 cm) apart
Row spacing12 in (30 cm) apart
Planting depth1 inch for sets
SunlightFull sun
When to plantEarly spring
Days to maturity100
Good companionscarrots, beets, lettuce
Avoid nearbeans, peas

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Spacing tips for Onions

Bulb diameter is limited by spacing, so 4 inches lets each onion reach full size.

Companion planting

Plant near: carrots, beets, lettuce.

Keep away from: beans, peas.

Frequently asked questions

How far apart should I plant Onions?
Space Onions about 4 inches apart within the row, with 12 inches between rows. Stop watering once tops flop to cure the bulbs.
How deep do I plant Onions?
Plant Onions at a depth of 1 inch for sets.
What grows well with Onions?
Good companions for Onions include carrots, beets, lettuce. Avoid planting near beans, peas.

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