How Far Apart to Plant Cucumber

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GardenSays

Your 8×4 ft raised bed fits 18 cucumbers at 15-inch spacing.

Between plants: 15 in
Grid: 6 × 3
Total plants: 18

Cucumbers need 12-18 inches between plants, and in a raised bed you can use that same spacing in both directions — no walking rows needed. At the 15-inch midpoint, that's 6 along the bed and 3 across — 18 plants.

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.

Why

✓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 varieties can take the tight end of the range; large bell peppers 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 spacing15 in
Cucumber: 12-18 inches between plants (extension guidance); midpoint used
2. Intensive grid6 × 3 plants
Raised beds skip walking paths: plants sit on a 15×15 inch grid. 96÷15 along, 48÷15 across (edge margins included in the division)
3. Total18 plants
6 × 3

Data sources

University of Minnesota Extension — Growing cucumbers in home gardens — Trellised cucumbers can grow about a foot apart; unsupported vines need several feet of spread between rows. (checked 2026-07-15)

Community choice

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