🌼 Plant Spacing Calculator
Plan layout density for flower beds, vegetable gardens, or containers using square spacing assumptions.
For irregular beds, sum the areas of multiple sections.
How to Use This Calculator
Measure bed area
Calculate total square footage or square meters of the planting space.
Select spacing
Use recommended plant spacing for mature size or desired density.
Review plant count
Purchase extra plants for replacements or to account for losses.
Formula
Plants = Area ÷ Spacing2
Spacing is converted to feet (or meters) before squaring. Adjust spacing for triangular or staggered patterns by multiplying by 0.866.
Full Description
Proper spacing ensures plants have room to mature, reduces competition, and improves air circulation. Tight spacing delivers fuller displays but may require extra feeding and pruning.
Combine this calculator with bloom times and plant heights to design layered garden beds.
Frequently Asked Questions
How do I adjust for row planting?
Divide bed width by spacing to estimate rows, then multiply by plants per row.
Should spacing differ for seedlings vs mature plants?
Use mature spacing to prevent overcrowding unless planning to thin later.
Can I mix spacing units?
Enter spacing in inches or centimeters; the tool converts to feet automatically.
What about triangular spacing?
Multiply the plant count by 1.15 to approximate staggered layouts for denser coverage.