Don't Plant Potatoes Next to Tomatoes

When it comes to gardening, there are certain things you should keep in mind. One of the most important is to avoid planting certain vegetables and fruits next to each other. This is because they can either attract pests, hamper growth, or inhibit each other's nutrient uptake. One crucial factor to consider is crop rotation. Aside from this, you also need to be mindful of companion planting. Here, we discuss why planting potatoes next to tomatoes is not a good idea.

The Reason Behind This Rule

Many gardeners follow the general principle of not planting plants in the same family grouping next to each other. This rule applies to potatoes and tomatoes since they belong to the same family.

The Solanaceae or nightshade family includes other plants like peppers, eggplants, and tobacco. All these plants contain a toxic compound called solanine. Solanine serves as a defense mechanism to protect them against insects and other animals that might want to eat them.

The Effect of Companion Planting Potatoes and Tomatoes

If potatoes and tomatoes are planted next to each other, they can attract the same pests, making them more vulnerable to infestations. For example, they might attract the Colorado potato beetle, which not only feeds on potatoes but also on tomatoes. This would allow the pest to reproduce and spread to other nearby crops.

Another effect is that potatoes and tomatoes need different nutrient levels, making it harder for them to thrive when planted next to each other. Potatoes need nitrogen, potassium, and phosphorus, while tomatoes need potassium and phosphorus. If you plant them next to each other, one crop may dominate nutrient uptake, and the other would suffer from deficiencies.

The Benefits of Alternating Potato and Tomato Plants

If you want to grow potatoes and tomatoes in your garden, it's best to alternate them each year. Planting them in different spots allows the soil to recover from previous years and reduces the risk of pests and diseases. If you have limited space, grow them in containers instead.

Additionally, planting tomatoes next to herbs like basil, parsley, and mint can help repel pests, including nematodes and aphids. These herbs also make great companion plants for potatoes as they deter potato beetles.

In Conclusion

Gardening can be challenging, especially if you're a beginner. But by following these simple guidelines, you can increase your chances of success. Remember to avoid planting potatoes next to tomatoes to prevent pest infestations and nutrient imbalances. Crop rotation and companion planting can also help you grow a bountiful and healthy garden.