Plant Spacing Calculator
Right spacing means healthy plants and no wasted seedlings. Enter your bed size and desired spacing to see how many plants it holds in a grid or offset layout.
Plant Spacing Calculator
Why use the Plant Spacing Calculator
Crowded plants compete and invite disease; too-sparse spacing wastes the bed. This finds the right count.
How to get your numbers
- Bed size or a total area.
- Spacing on center from the seed packet or plant tag.
- Triangular (offset) rows fit about 15% more.
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How to use it
- Enter the bed dimensions or a total area.
- Enter the recommended spacing from the seed packet or plant tag.
- Use triangular spacing to fit more in the same bed.
Frequently asked questions
How many plants do I need for my garden?
Divide the bed area by the square of the spacing (in feet). Offset “triangular” rows fit about 15% more plants than a square grid.
What does spacing “on center” mean?
The distance from the center of one plant to the center of the next — the number printed on seed packets and plant tags.
Square vs triangular plant spacing?
Triangular (staggered rows) packs plants more efficiently and shades out weeds faster; square is simpler to lay out.
How far apart should I plant vegetables?
It varies by crop — lettuce about 8 inches, peppers 18, tomatoes 24–36. Always follow the spacing on the seed packet.
Does closer spacing give more yield?
Up to a point. Too close and plants compete for light, water and airflow, which lowers yield and invites disease.
How do I read spacing on a plant tag?
The tag lists spacing and mature size; space plants at least their on-center number apart so they fill in without crowding.
What is the difference between plant spacing and row spacing?
Plant spacing is the gap between plants in a row; row spacing is the gap between rows. Wide rows ease access and airflow.
