Plant Spacing Calculator
Find how many plants fit your bed at a given spacing
Frequently Asked Questions
Divide the bed's length by the spacing (plus 1) to get plants per row, divide the width by spacing (plus 1) for the number of rows, then multiply rows × plants per row.
Triangular (offset/staggered) spacing packs plants about 15% denser than a square grid at the same spacing, because each row is offset by half the spacing and rows are closer together (spacing × √3/2).
Check the seed packet or plant tag — it varies hugely by crop (6 inches for lettuce, 12-18 inches for tomatoes, 36+ inches for squash).
Yes, a small border (a few inches) between the bed edge and the first plant makes maintenance and watering easier, and outer plants often struggle more than interior ones.