How Far Apart Should You Plant Green Beans?

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GardenSays

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

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

Bush beans need 2-4 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 2026-07-17 · 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 bush beans 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
Bush Beans: 2-4 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 Maryland Extension — Growing Beans in a Home Garden — Sow snap beans after danger of frost is past; cold, wet spring soil causes seed rot. Succession-sow every 2-3 weeks from the frost-free date through mid-to-late July. Bush snap spacing 2-4 in in-row x 24-30 in rows. 50-60 days to maturity. Harvest when pods are tender and snap easily, seeds ~1/4 full size before pods bulge. Keep the root zone moist, water more once pods develop. (checked 2026-07-17)

What changes this answer

Layout

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Your next decisions

When to Plant Green Beans

Time bush-bean sowings after frost, with warm soil, and succession-sow for a long harvest

When to Harvest Green Beans

Pick beans young and often to keep plants producing

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Space corn in a block of short rows for good wind pollination

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