Plant Spacing Calculator
Estimate plants needed for any bed and spacing.
Use the plant spacing calculator to estimate how many plants a bed needs based on its area, spacing, and layout. A square grid uses 144 divided by spacing squared to calculate density, while a triangular, offset layout fits about 15% more plants at the same on-center distance.
Square layout
100
plants
Triangular layout
116
plants (15% more)
Density
1
plants/ft²
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How does the plant spacing calculator work?
Square-grid density = 144 ÷ spacing². Triangular (offset) layout fits ~15% more plants at the same on-center distance.
What else do people ask about this calculator?
How many plants for 100 sq ft at 12 in spacing?
Square grid: 100 plants. Triangular: 116 plants.
Square vs triangular layout?
Triangular looks fuller, uses ~15% more plants, and fills in faster. Square is easier to lay out on a grid.
Which related calculators should I use next?
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