Plant Spacing Calculator
Estimate plant quantity from bed dimensions or known area and your intended center-to-center spacing.
Results
Planting area
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Estimated plants
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Use the result as a planning estimate and verify project-specific measurements, product information and site conditions where relevant.
How it works
The calculator estimates area used per plant from the selected spacing. A staggered triangular layout uses about 13.4% less area per plant than a square grid.
plants ≈ ceil(area ÷ area per plant)Worked example
A 12 ft × 4 ft bed with 12 in spacing holds about 48 plants on a square grid.
Assumptions
- Spacing is treated as center-to-center.
Limitations
- Real bed edges and plant habit can change the practical count; follow plant-specific spacing guidance.