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    Plant Spacing Calculator

    Calculate exactly how many plants fit in your garden. Optimize your vegetable garden layout for maximum yield.

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    Onions Spacing Guide

    Root Vegetables

    Calculate How Many Onions Fit in Your Garden

    Use our free plant spacing calculator to determine exactly how many onions plants will fit in your garden bed.

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    Optimal Spacing for Onions

    Plant Spacing

    4" (10 cm)

    Distance between individual plants

    Row Spacing

    12" (30 cm)

    Distance between rows

    About Onions

    Onions are essential kitchen staples that store well after harvest. Proper spacing allows bulbs to develop to full size without competition.

    Growing Tips for Onions

    • 1.

      Plant onions 4 inches apart in rows 12 inches apart

    • 2.

      Keep soil consistently moist during bulb formation

    • 3.

      Stop watering when tops begin to fall over

    • 4.

      Cure bulbs before storing

    Common Varieties

    YellowRedWhiteSweet

    Harvest Time

    100-120 days from sets

    Related Plants

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    Carrots

    3" spacing

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    Radishes

    2" spacing

    Browse by Category

    Root Vegetables

    Root vegetables grow underground and include carrots, radishes, and onions. They require loose, well-drained soil and consistent spacing for proper root development.

    Ready to Plan Your Onions Garden?

    Calculate exactly how many onions plants will fit in your garden space with our free calculator.

    Use Plant Spacing Calculator