Plant Spacing Calculator
Estimate how many plants fit in a tray at the species' published spacing. Shows both the area-density estimate and the grid-geometry estimate, then a conservative recommendation.
Only plants with published spacing data are listed. Omission is intentional — species without cited spacing are tracked without fabricated values.
Recommended plant count16Conservative: minimum of area-based and grid-based estimates.
- Tray area
- 4.00 sqft
- Area-based (4/sqft)
- 16
- Grid-based (6" spacing)
- 4 × 4 = 16
Area-based counts come from Arugula's published plants per square foot. Grid-based counts apply center-to-center spacing to the tray dimensions. They differ most for non-square trays; take the lower number.