Companion Planting for Potatoes: Can You Plant Potatoes After Tomatoes?

Choosing the right crop at the right time allows you to enjoy a healthy yield. Your knowledge of the environment, plant taxonomy, and culture will be helpful here. Does planting potatoes after tomatoes pose any problems? Can you plant potatoes where tomatoes were?

Potatoes and tomatoes belong to the family of nightshades. They are susceptible to the same diseases and long for the same soil nutrients. Avoid planting potatoes where tomatoes once grew. Before planting, remove and destroy all infected crop debris. 

Tomatoes and potatoes compete for nutrients and become more vulnerable to blight if planted together. Choose fungal-resistant tomato and potato varieties if you plan to plant them together. Maintain a distance of at least 3 meters between them. 

Diseases and insects that affect crops in the same family tend to be similar. Rotating crops within different families reduces the buildup of insects and diseases. This rotating process breaks the life cycle of those pests. 

The rotation of crops helps prevent cross-contamination and disease spread. When growing tomatoes with potatoes, use new soil and organic compost.

Rotation interrupts pest habitats. They often find a habitat near fields that always grow the same crops. Some pathogens that cause diseases survive in the soil for years. A rotation to non-host crops prevents the accumulation of large populations of pathogens. 

Rotating crops can enhance soil structure, aeration, and drainage. Growing the same plants in the same place drains the soil of certain nutrients needed for that crop. Learn how to grow potatoes and tomatoes together in this video. 

After tomatoes, plant legumes, and then cruciferous crops. The roots of legumes have nodules that can capture nitrogen and add it to the soil. Planting legumes after tomato plants replenish the soil with nitrogen.  

Legumes such as beans have a symbiotic relationship with soil bacteria called rhizobia. As a result of this symbiosis, nodules form on the roots of the legume. Rhizobia can convert atmospheric nitrogen into ammonia, which helps legumes fix nitrogen. 

How Can I Practice Crop Rotation?

Rotating above-ground crops with below-ground crops is a general rule of thumb. Rotate the four crop groups: solanaceous, cruciferous, root, and leguminous. 

A crop rotation helps optimize the soil’s nutrients. Furthermore, it minimizes the risk of nematodes and disease. Rotating plants helps manage soil fertility.  

What Should I Plant After My Tomato Crop?

Tomatoes are heavy feeders. Your garden won’t be able to support another crop with similar requirements. Plants with light feeding needs are ideal for planting after tomatoes. Find whether they can withstand autumn temperatures. 

Planting onions, parsnips, carrots, legumes, beetroot, and coriander after tomatoes meets those requirements. These plants will thrive in the soil you have already used for your tomato plants.

Most farmers prefer to plant legumes such as beans, peas, clover, or peanuts after tomatoes. Due to the tomatoes removing weeds from the soil, carrots will have more room to grow. 

What Can I Not Plant After Tomatoes?

Avoid growing plants in the nightshade family, including peppers, eggplants, and potatoes. It can deplete the soil of nutrients and make it unfit to plant the following season. 

The potato crop is susceptible to early and late blight, so avoid it if you plan to plant tomatoes in the next season. 

Avoid planting leafy greens like broccoli and cabbage after tomatoes. To thrive, they need a high amount of nitrogen, which will deplete your soil of nutrients. 

Can I Plant Tomatoes And Peppers Next To Each Other?

Tomatoes and peppers both fall into the nightshade family or Solanaceae. Tomatoes belong to the genus Solanum, which also includes potatoes and eggplants. Peppers fall under the genus Capsicum, which contains sweet and hot peppers. 

Plant them at a distance of 1-2 feet between plants and 2-3 feet between rows. Because they are from the same family, they have some diseases in common. Gardens can enjoy companion planting because it provides symbiotic benefits. Incorrect planting techniques can also cause problems. 

Interplanting or planting two symbiotic plants together is popular in organic agriculture. It maximizes the diversity and yield of plants in a particular area.

By planting companion crops, you reduce disease and pest infestations. Garden ecosystems with high diversity are more resilient. Watch this video to learn how to select companion plants for tomatoes.

Maintaining plants is easier when they have similar nutrients, water, and growth requirements. Tomatoes and peppers need plenty of nutrients, enough water, and sunlight. It can make them competitors, but the correct steps can make them work together well.

Solanaceous crops prefer temperatures between 75 and 90 degrees Fahrenheit for fruiting. It takes them many days to mature since they are long-season crops. Peppers take a long time to ripen and need care throughout the summer.

Tomatoes produce for the entire season and are easy to grow. Suitable plant companions have similar needs or growth habits. There are many benefits to planting peppers and tomatoes together. It can maximize the yields from limited space and attract the same pollinators.

Both prefer soil with a pH of 6 or 7. Their leaves prefer not to have water on them and need a continuous water supply. It is ideal to use drip irrigation or soaker hoses for this purpose.

The most effective potato companion plants are those that enjoy sprouting potatoes. Deterring pests, improving soil, or enticing pollinators are a few of the ways they can help. 

Crops in the cabbage family make ideal companion plants for potatoes. They won’t compete for space or nutrients as they have a shallow root system. Legumes are a good companion for potatoes as they release nitrogen into the soil. 

Some farmers believe that corn enhances the flavor of the tubers. Any short-rooted crop will grow well alongside potatoes. 

What Is Companion Planting?

Companion planting is the cultivation of different crops near to gain benefits. It is beneficial for pest control, pollination, and increasing crop yield. 

How Can I Prepare The Soil After Cultivating Tomatoes?

Remove any remaining tomato plants, collect any dropped fruits, and pull out the roots. Keep your soil safe by discarding or burning any plant leftovers. Aerate the topsoil by turning it. It helps destroy microorganisms that might harm your future crops.


From ancient times, farmers have used many agricultural practices. Crop rotation and companion planting helped them combat pests and increase yields. There is much wisdom in this age-old practice that modern farmers can enjoy.

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