What vegetables should not be planted next to each other?

When it comes to planning your vegetable garden, it’s important to consider companion planting and avoid planting certain vegetables next to each other. Companion planting is a gardening technique that takes advantage of the beneficial relationships between different plants. Some plants can help deter pests, enhance growth, or improve flavor when planted next to each other, while others may have negative effects.

Here is a detailed list of vegetables that should not be planted next to each other:

1. Tomatoes and Cabbage Family: Tomatoes and members of the cabbage family, such as cabbage, broccoli, cauliflower, and kale, should not be planted together. Cabbage family plants release chemicals that can inhibit the growth of tomatoes, leading to stunted plants and reduced yields.

2. Potatoes and Tomatoes: Both potatoes and tomatoes are susceptible to a common pest called the Colorado potato beetle. By planting them together, you increase the risk of infestation. Additionally, both plants require similar soil conditions, and planting them together can lead to competition for nutrients.

3. Beans and Onions/Garlic: Beans and onions/garlic should not be planted together. Onions and garlic can stunt the growth of beans, while beans can adversely affect the flavor of onions and garlic. It’s best to keep these plants separate.

4. Carrots and Dill/Coriander: Carrots and dill or coriander (cilantro) should not be planted together. Dill and coriander attract beneficial insects that can help control pests, but they can also attract pests that feed on carrots, such as carrot rust flies. It’s best to keep these plants apart to avoid attracting pests to your carrots.

5. Cucumbers and Aromatic Herbs: Aromatic herbs such as sage, dill, and mint can inhibit the growth of cucumbers. These herbs release volatile oils that can stunt cucumber growth, so it’s best to plant them in different areas of your garden.

6. Brassicas (Cabbage Family) and Strawberries: Strawberries and members of the cabbage family should not be planted together. Strawberries are susceptible to diseases such as verticillium wilt, which can also affect cabbage family plants. It’s best to keep these plants separate to prevent the spread of diseases.

7. Corn and Tomatoes: Corn and tomatoes should not be planted together. They are both heavy feeders and require similar nutrients from the soil. Planting them together can lead to nutrient deficiencies and poor growth. It’s best to rotate these crops in different areas of your garden each year.

8. Peppers and Fennel: Peppers and fennel should not be planted together. Fennel can inhibit the growth of peppers and affect their flavor. It’s best to separate these plants to ensure optimal growth.

Remember, these are general guidelines, and there may be exceptions or variations based on your specific garden conditions. It’s always a good idea to do further research and consider your local climate and soil conditions when planning your vegetable garden.

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Caroline Bates

Caroline is a Miami-based landscaper who specializes in drought-tolerant landscapes. She is the mother of two young children and also enjoys writing for GreenPacks.org in her spare time. Caroline takes great pride in her work, and loves being able to share her knowledge with others through her writing.