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Warning: Never Plant These 5 Plants Together

Anyone can stick a few seeds in the ground, but I’m guessing you’re at the stage where you want to grow more, bigger, and better produce. That’s why you need to know about these important planting rules, which will make or break your gardening success.

There are many reasons why certain plants should not be planted together.

  • Sun and shade: Tall plants can stop smaller ones from getting the light they need
  • Conflicting needs: Plants that need different soil types or moisture levels will not work well together
  • Diseases: Certain plants are susceptible to the same diseases or pests
  • Chemical damage: A secret overlooked by many gardeners! Many plants emit chemicals which will damage the growth of other plants if you unknowingly place them together

If you’ve ever struggled to get the results you want from your garden, you need to know these 5 plant pairs which you should NEVER plant together:

1. Potatoes and Tomatoes

Potatoes and tomatoes are members of the same family, but they do not grow well when planted together. Potatoes slow the growth of the tomato plant and themselves become more susceptible to Phytophthora, also known as potato blight, when the plants are together.

2. Cabbage and Cauliflower

When cabbage and cauliflower are planted together, they are more likely to be affected by Plasmodiophora brassicae, also known as club root. The fungus causes the roots to swell and become unable to take up water and the plant quickly dies.

3. Carrots and Dill

Carrots don’t grow well when planted too close to dill. I learned this one the hard way. I had conditioned the soil perfectly for those carrots, but they ended up small and malformed. The dill had a very noticeable effect on the crop. Now, I know to keep them separate.

4. Cucumbers and Basil

Cucumbers are one of the first vegetables that many new gardeners plant and they usually give good results. However, they do not like to be planted near potatoes, tomatoes, cauliflower, or any of the strong aromatic herbs like cilantro, basil, rosemary, thyme, or lavender.

5. Sunflowers and Any Other Plant

Sunflowers emit a chemical from their roots that prevents nearby plants from growing and competing for nutrients. This chemical affects an area of at least 12 inches around the plants. Don’t plant other plants within 12 inches of sunflower plants.

Planning your garden can be hard work, but it’s well worth considering the effects that plants have on each other before you plant. Otherwise, you may end up with a disappointing yield and never understand why.

To your health,
Susan Patterson