Companion Planting Guide Calculator
Plant Compatibility Check
Check if two plants are good companions
Three Sisters Planting
Calculate spacing for the classic corn, beans, squash trio
Formula
Three Sisters: Hills = (Plot Length / Spacing) × (Plot Width / Spacing) | Seeds per hill: 4 corn, 4 beans, 1 squash
Frequently Asked Questions
What is companion planting?
Companion planting is the practice of growing certain plants together for mutual benefit. Benefits include pest control (marigolds repel nematodes), pollination improvement, nutrient sharing (beans fix nitrogen), and space optimization.
What are the best companion plants for tomatoes?
The best companions for tomatoes are basil (repels pests, improves flavor), marigolds (repel nematodes), carrots (loosen soil), garlic (natural fungicide), and lettuce (ground cover). Avoid planting tomatoes near cabbage, broccoli, or potatoes.
What is the Three Sisters planting method?
The Three Sisters is a Native American planting technique combining corn, beans, and squash. Corn provides a structure for beans to climb, beans fix nitrogen in the soil, and squash leaves shade the ground to retain moisture and suppress weeds.
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