Plant spacing calculator
A triangular grid fits about 15% more plants into the same area than a square grid at the same spacing.
Plants needed
102
- Rows
- 3
- Plants per row
- 34
- Plants per square metre
- 8.500
- Plants per hectare
- 85 000
- Area per plant
- 1176 cm2
- Bed area
- 12.00
Show the working
- Bed length = 10
- Bed width = 1.2
- Row spacing = 45
- Spacing within the row = 30
- Pattern = 1
- Rows = floor(1.2 / (45/100)) + 1 = 3
- Plants per row = floor(10 / (30/100)) + 1 = 34
- square_total = 3 * 34 = 102
- Plants needed = round(102 * 1) = 102
- Bed area = 10 * 1.2 = 12
- Plants per square metre = 12 > 0 ? 102 / 12 : 0 = 8.5
- Plants per hectare = 8.5 * 10000 = 85 000
- Area per plant = 102 > 0 ? 12 / 102 * 10000 : 0 = 1176.47
Values are shown to six significant figures here; the arithmetic itself runs on exact fractions and is only rounded where a number is printed.
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The formula
- rows = floor(width / row spacing) + 1
- a triangular grid fits 2/sqrt(3) = 1.1547 times as many plants as a square one