Companion Plants for Radishes

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Radishes are an easy-to-grow garden crop that is a fast producer. There are many options when it comes to companion plants for radishes. In this article, we go over what you should and should not plant with your radishes in your garden and why.

Companion planting is used by gardeners to help repel pests and provide extra benefits to certain crops by planting complementary crops together.

When it comes to companion planting, radishes are one of those garden crops that provide more benefits to other plants in the garden. Radishes can repel certain pests and divert others away from crops like squash.

Best Companion Plants for Radishes

  • Carrots
  • Chervil
  • Cucumbers
  • Eggplant
  • Kale
  • Lettuce
  • Marigolds
  • Melons
  • Okra
  • Onions
  • Peas
  • Peppers
  • Pole Beans
  • Spinach
  • Squash
  • Tomatoes
  • Turnips
  • Zucchini

Carrots, when started at the same time as radishes, benefit from the radishes loosening the soil. This allows the carrots to grow easier after you have harvested the radishes.

Chervil helps repel slugs which can damage the leafy part of radishes.

Cucumbers: Radishes benefit cucumber plants when planted together by repelling cucumber beetles. Find companion plants for cucumbers here.

Kale is a good companion plant for radishes as you can plant the radishes between kale for a fast harvest and to utilize space in the garden well.

Lettuce will help make your radishes more tender.

Okra benefits from radishes due to the loosened soil that radishes leave after being harvested.

Onions: Radishes act as traps to root maggots. The main drawback of using radishes as a companion plant to onions is that they should not be eaten and instead thrown out. Using radishes as a companion plant this way is to only the benefit of the onion crop.

Marigolds are very common companion plant for many crops including radishes. They attract pollinators and deter many harmful pests away from your crops.

Melons are at risk for the same pests as squash, so radishes will help keep those pests off your melon plants.

Peas are nitrogen fixers and will help replenish nitrogen levels in the soil.

Peppers: Hot peppers and bell peppers make good companion plants for radishes because they can be a great space-saving combo. Another bonus is when planting radishes in the open space around pepper plants they can help provide ground cover and keep weeds away from your pepper plants.

Pole Beans: Pole beans, like green beans, will grow well above radishes growing on the ground and they will add nitrogen to the soil. Extra nitrogen will help the growth of the radishes using the same soil.

Spinach benefits from radishes being nearby when planted together as a companion crop. Radishes act as a trap for leafminers, keeping them off your spinach leaves and having them feast on your radish leaves instead.

Squash and Zucchini: Radishes help keep squash borers away from your squash plants and instead they will be attracted the radish leaves.

Tomatoes: Planting tomatoes with radishes will benefit your tomato plants by deterring flea beetles and cucumber beetles. Find other companion plants for tomatoes here.

Related Reading:

Companion Plants for Carrots
Companion Plants for Spinach
Companion Plants for Zucchini

What Not To Plant With Radishes

  • Broccoli
  • Brussels Sprouts
  • Cabbage
  • Celery
  • Cauliflower
  • Grapes
  • Horseradish
  • Cabbage
  • Potatoes
  • Pumpkins
  • Hyssop
  • Agastache

Broccoli, Cabbage, Cauliflower, and Brussels Sprouts: Radishes can attract flea beetles which can harm broccoli and Brussels sprouts.

Potatoes can have their growth stunted by radishes.

Pumpkins have shallow roots that could be damaged when radishes are harvested.

Hyssop can stunt the growth of radishes.

Related Reading:

Companion Plants for Broccoli
Companion Plants for Brussels Sprouts
Companion Plants For Pumpkins and What Not To Plant With Pumpkins
Good Companion Plants for Radishes and What Not To Plant With Radishes in the Garden

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