Companion Plants - Peterborough Master Gardeners, Ontario, Canada


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Companion Plants - Peterborough Master Gardeners, Ontario, Canada

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Companion Plants - Peterborough Master Gardeners, Ontario, Canada

  1. 1. Hotline 705-741-4905Number 0025 Companion Plants March 27, 2010 Turnips Growing with peas deters aphids. Turnips are useful for intercropping between taller crops and for catch-cropping Peas Peas grow well with other legumes, root crops, potatoes, cucurbits, and corn. Beans A traditional trio – corn, beans and squash or pumpkins are great companions. Squash, Pumpkin, Zucchini, Marrow Grow zucchini and marrow alongside corn for support and shade and with legumes which provide essential nitrogenCatch crops LettuceIn agriculture, a catch crop is a fast-growing crop that is Lettuce grows well with cucumbers, onions, radishes andgrown simultaneously with, or between successive carrots. Dill and chervil protect them from aphids.plantings of a main crop. GarlicCarrots Planted beside rose bushes, garlic controls greenfly. GoodIntercropping carrots with onions reduces carrot fly companions are lettuce, beet, summer savory, Swiss chardattacks; leeks and salsify have also been used with some and strawberries. It shoud not be planted with peas andsuccess. Mixing with seeds of annual flowers also seems discourage carrot fly. Carrots grow well with lettuce,radishes, and tomatoes, and encourage peas to grow. They Oniondislike anise and dill. If left to flower, carrots attracthoverflies and other beneficial predatory insects to the Parsley sown with onions is said to keep onion fly Parsnips Sow rapidly germinating radish and lettuces between rows.Beets Parsnips grow well alongside peas and lettuce, providing they are not in the shade. Plant next to carrots and leave aBeets flourish in the company of kohlrabi, carrots, few to flower the following year as they attract beneficialcucumber, lettuce, onions, brassicas and most beans (not insectsstring beans). Dill or fennel planted nearby attractspredators. Because they combine well with so many othercrops and small roots mature with 9-13 weeks, beets aregood for intercropping and useful catch-crops
  2. 2. Potatoes in the same row as slow-germinating crops like parsnips or parsley they mark where the main crop has been sown,Growing horseradish in large sunken pots near potatoes make weeding easier and can be harvested withoutcontrols some disease. Plant with corn, cabbage, beans and disturbing the developing plants.marigolds. Grow with eggplants, which are a greaterattraction to Colorado potato beetle. Protect against scab Rhubarbby putting grass clippings and comfrey leaves in the Rhubarb is reported to control red spider mite. Aplanting hole or trench. traditional remedy suggests putting rhubarb in plantingAsparagus holes to control clubroot. An infusion of leaves is effective as an aphicide and to check blackspot on roses.Where growing conditions allow, asparagus is compatiblewith tomatoes, parsley and basil. RutabagaTomatoes They grow well with peas SpinachGrow with French marigolds to deter whitefly. Tomatoes Good with beans, peas, corn and strawberriesgrow well with basil, parsley, alliums, nasturtiums andasparagus Swiss ChardBroccoli They grow well with all beans except string beans and flourish with brassicas, onions and lettuce. Herbs likePlant with rosemary, thyme, sage, onions, garlic, beets and sage, thyme, mint, dill, hyssop, rosemary and garlic arechards. also compatible.Brussels sprouts PumpkinsWhen planted among maturing onions, sprouts benefit see Squashfrom their root residues and the firm soilCabbageCabbage thrives in the company of herbs like dill, mints,rosemary, sage, thyme and chamomile. They also growwell with many other vegetables including onions, garlic,peas, celery, potatoes, fava beans and beets. Like allbrassicas, they benefit from the nitrogen left in the soilafter legumes have been grown.CauliflowerPlant with rosemary, thyme, sage, onions, garlic, beets andchards.CornA traditional trio – corn, beans and squash or pumpkins aregreat companionsEggplantEggplants flourish alongside thyme, tarragon and peas.PeppersThe capsicum family grows well with basil, okra andtomotoesRadishRadishes grow well with chervil, peas and lettuce andthrive with nasturtium and mustard. Because of their rapidgrowth, radishes make an excellent “indicator crop.” Sown