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Companion Planting

Writer's picture: Art Knapps Prince GeorgeArt Knapps Prince George

Companion planting is a sustainable gardening technique that involves strategically placing plants together to enhance growth, deter pests, and improve pollination. This guide provides essential information for pairing plants effectively and maximizing garden health and productivity.



Companion planting is a strategic gardening approach that optimizes the interplay between different plant species to enhance garden health and productivity. It works through several mechanisms: Pest deterrence, where some plants naturally repel pests or attract beneficial insects that help control pest populations; nutrient sharing, where specific plant combinations are used to enhance soil nutrient levels, as some plants can fix nutrients in the soil while others can benefit from increased nutrient availability; and shade regulation, where taller plants provide necessary shade for sun-sensitive shorter plants, helping them thrive without exposure to harsh direct sunlight. Each of these aspects contributes to a more balanced and productive garden ecosystem.



there are plants that make good neighbours and plants that make bad neighbours

Tomatoes

  • Companions: Basil, carrots, onions, parsley, marigold

    • Avoid: Cabbage, kale, potatoes, fennel


Carrots

  • Companions: Tomatoes, peas, onions, leeks, rosemary

  • Avoid: Dill, parsnips


Peppers

  • Companions: Basil, onions, spinach, tomatoes

  • Avoid: Beans, kohlrabi


Beans

  • Companions: Corn, squash, cucumbers, strawberries

  • Avoid: Onions, garlic, peppers


Lettuce

  • Companions: Strawberries, radishes, carrots, cucumbers

  • Avoid: Parsley, celery


Cucumbers

  • Companions: Beans, celery, lettuce, radishes, peas

  • Avoid: Potatoes, aromatic herbs


Zucchini and Squash

  • Companions: Nasturtiums, marigold, corn, beans

  • Avoid: Potatoes


Tips for Successful Companion Planting:

  • Plan Your Garden Layout: Use this guide to layout your garden beds, keeping companions close and avoid planting incompatible pairs in proximity.

  • Rotate Crops Annually: To prevent soil depletion and reduce pest buildup, rotate your plant groups in different plots each year.

  • Monitor Plant Health: Keep an eye on your plant interactions. What works one year may need adjustment the next based on changes in garden conditions.

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