Garden Bed Companion Planting Spacing Calculator
Plan your garden layout efficiently by calculating exactly how many plants fit in your available space, split across a primary crop and companion plant.
Total Plants
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Bed Area (sq ft)—
Primary Plants—
Companion Plants—
About this calculator
Calculate how many plants of each type fit in your garden bed based on spacing requirements and companion planting ratios.
Frequently Asked Questions
How is spacing converted to plant count?
We treat each plant's spacing requirement as the diameter of a circular area it needs, then divide the total bed area allocated to that plant type by that per-plant area.
What's a good companion ratio?
Many gardeners use a 70/30 or 80/20 split between a primary crop and companion plants like herbs or flowers that deter pests or attract pollinators.
Does this account for plant height or shading?
No, this calculator only estimates footprint-based spacing. You should still consider sunlight and height when placing taller plants.