Companion Planting Calculator — What to Grow Together
Find companion planting combinations and spacing for common vegetables.
How We Calculate This
This calculator provides evidence-based companion planting information for common UK vegetable garden crops.
Each crop has recommended companions (plants that benefit each other), plants to avoid (those that inhibit growth), spacing guidance, and an explanation of the benefits.
Frequently Asked Questions
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Last updated: February 2026
All calculations are estimates based on standard gardening guidelines. Results may vary with soil conditions, climate, and plant varieties.