How Far Apart to Plant Carrots

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GardenSays

Your 8×4 ft raised bed fits 512 carrots at 3-inch spacing.

Between plants: 3 in
Grid: 32 × 16
Total plants: 512

Carrots need 2-3 inches between plants, and in a raised bed you can use that same spacing in both directions — no walking rows needed. At the 3-inch midpoint, that's 32 along the bed and 16 across — 512 plants.

Calculated result · 1 verified source · Checked 2026-07-16 · How we decide

The link reopens this exact calculation.

Why

Crowding is the most common spacing mistake: closer planting doesn't add yield, it adds shade, disease pressure, and small fruit. When in doubt, use the wider end of the range.

Air circulation between mature plants is the cheapest disease prevention there is.
Roots spread wider than the plant looks in June — spacing is set for August size.

When this doesn't apply

Compact carrots can take the tight end of the range; large or vigorous ones want the wide end.
Square-foot gardening compresses further than these numbers — it trades yield per plant for yield per bed and needs diligent feeding.

How this was calculated

1. In-row spacing3 in
Carrot: 2-3 inches between plants (extension guidance); midpoint used
2. Intensive grid32 × 16 plants
Raised beds skip walking paths: plants sit on a 3×3 inch grid. 96÷3 along, 48÷3 across (edge margins included in the division)
3. Total512 plants
32 × 16

Data sources

University of Minnesota Extension — Growing carrots and parsnips in home gardens — Thin carrot seedlings to a couple of inches apart — crowded carrots stay small and tangle. (checked 2026-07-16)

What changes this answer

Layout

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Bed width (ft)

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Every change updates the answer, the math, the weekly steps and the share link instantly.

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