Plant Spacing Calculator
Calculate optimal plant spacing for gardens and hedgerows with square, rectangular, or triangular layouts
Plant Spacing Configuration
Area Dimensions
Empty space around the planting area
Distance between plant centers
Automatically sets recommended spacing
Plant Cost Estimation (Optional)
Garden Layout Results
Calculation Formula
Number of rows: floor(width ÷ spacing) + 1
Density: 1 ÷ (spacing)²
Example Calculation
3m × 2m Garden with 50cm Plant Spacing
Area: 3m length × 2m width = 6 m²
Plant spacing: 50cm (0.5m)
Border: None (0cm)
Grid type: Square
Calculation
Plants per row = floor(3 ÷ 0.5) + 1 = floor(6) + 1 = 7
Number of rows = floor(2 ÷ 0.5) + 1 = floor(4) + 1 = 5
Total plants = 7 × 5 = 35 plants
Density = 1 ÷ (0.5)² = 4 plants per m²
Seasonal Planting Guide
Grid Pattern Comparison
Spacing Tips
Triangular spacing fits 15% more plants
Leave borders for maintenance access
Consider mature plant size for spacing
Hedges: 33cm spacing is standard
Check seed packets for recommendations
Understanding Plant Spacing Patterns
Grid Pattern Benefits
Square Grid
- • Easiest to plan and implement
- • Equal spacing in all directions
- • Simple maintenance and harvesting
- • Good for beginners
Rectangular (Row) Grid
- • Easier to walk between rows
- • Better for mechanical cultivation
- • Improved disease management
- • Traditional farming approach
Triangular Grid
- • Maximum space efficiency
- • 15% more plants than square grid
- • Better soil coverage
- • Ideal for landscaping
Spacing Formulas
Square/Rectangular
Density = 1 ÷ (spacing)²Plants per row = floor(length ÷ spacing) + 1
Triangular
Density = 2 ÷ (√3 × spacing²)Row spacing = plant spacing × √3 ÷ 2
From Density
Spacing = √(1 ÷ density)Calculate spacing from target plant density
Planning Considerations
Plant Size
Consider the mature size of plants when determining spacing. Overcrowding leads to competition for light, water, and nutrients.
Maintenance Access
Leave adequate space for walking, weeding, watering, and harvesting. Include borders and pathways in your design.
Growth Habit
Sprawling plants need more space than upright ones. Consider using supports or cages for vertical growing.