Who’s Your Buddy? Let’s Take a Look at Vegetable Companion Planting

Companion planting is a concept that has been practiced for years.  It is born out of the idea that there are groups of vegetables and flowers that grow more robustly together than they do alone.  And conversely, there are certain plants that actually grow worse – their growth slows down or is impeded – by certain neighbouring plants.

We have put together the chart below to give you ideas as you plan your veggie gardens, be they in ground, in raised beds, or in square foot gardens.

Before we get to the chart, just a few quick definitions:

  • Allium Family – onions, garlic, leeks, chives, shallots
  • Cole crops – also known as cruciferous vegetables – include: broccoli, Brussels sprouts, cabbage, cauliflower, kale, kohlrabi, etc
  • Leaf crops – includes lettuce, lettuce mixes, spinach, Swiss chard
  • Root crops – the roots are the vegetables we eat – include: beets, carrots, potatoes, parsnips, onions, turnips
  • Squash family – includes squash, pumpkins, zucchini

One other note: Marigolds are included in this chart because of their overall benefit to gardens in general – they assist in controlling many garden pests and nematodes.  Specifics are included in the chart.

We welcome you to reach out to us with any questions that you may have via email us and encourage you to come into our greenhouse this spring for seeds and started veggies in our vegetable department.  We’d be delighted to help you choose fun and tasty varieties to try this growing season.

 Vegetable Companion Planting    





carrots, celery, cole crops, corn, cucumbers, lettuce, onions, peas, potatoes, squash family


allium family, cabbage, chives, fennel, peppers, sunflowers corn acts as a trellis,

beans add nitrogen to the soil

carrots, cole crops, corn, cucumbers, lettuce, peas, onions beans, tomatoes
asparagus, allium family, beans, lettuce, parsley, peas, peppers, rosemary


celery, coriander, dill, parsnip, potatoes onion, parsley & rosemary help the companions deter carrot fly
beans, cole crops, dill, leeks, marjoram,  peas, potatoes, spinach, tomato, cosmos, daisies, marigolds, nasturtiums, snapdragons anise, dill, carrots, corn, parsley, potato, asters Asters may cause a disease called Aster Yellows
beets, carrots, celery, dill, garlic, mint onions, parsnips, peas, rosemary, sage pole beans, onions, potatoes, tomatoes, strawberries,


mint & rosemary deter cabbage moth

garlic improves flavor

beans & peas & pumpkin

cucumber, lettuce, marjoram, potatoes, sunflower, squash family

celery, tomato beans + corn + pumpkin / squash = the 3 sisters that work together to fix nitrogen from the air & into the soil
beans, celery

cole crops, corn, dill, lettuce, peas

squash family, potatoes, heavily aromatic herbs potatoes & zucchini cause cucumbers to produce poorly
beans, beets, cole crops, leeks, mint, peas, peppers, radishes, strawberries, marigold parsley mint helps to repel slugs
cole crops, cucumbers, lettuce, potatoes, squash family, tomatoes beneficial for deterring many garden insect pests, beetles, and root crop damaging nematodes
beets, carrots, cole crops, lettuce, parsnips, peppers, potatoes, tomato, rosemary,  strawberry asparagus, beans, peas, sage  
beans, beets, carrots, celery, cole crops, corn, cucumbers, lettuce, potatoes, radishes, squash, sage, turnips allium family, onions, tomatoes  
basil, carrots, coriander, onions, spinach, tomatoes beans, eggplant share similar traits and pests – keep a distance from each other
basil, beans, celery, corn, garlic, lettuce, onion, peas, spinach, asparagus, carrots, cole crops, cucumber, peppers, squash, tomatoes, raspberries, strawberries, sunflowers cucumbers, raspberries & tomatoes share similar pests – maintain a healthy distance from each other
beans, corn, dill, garlic, peas, radish, strawberries, spinach, marigolds, nasturtiums, sunflower potatoes  
Basil – best garden buddy for tomatoes

asparagus, carrots, celery, chives, oregano, onion, parsley, rosemary, strawberry

beets, cole crops, corn, eggplant, okra,   peas, peppers, potatoes


share common insects & diseases with  peppers, eggplant, okra,   and  potatoes =  space these apart from each other so they don’t infect one another