What Cannot be planted next to sweet potatoes?

Answered by Jarrod Smith

When it comes to planting sweet potatoes, there are a few plants that you should avoid planting nearby. These plants can either compete with sweet potatoes for space and nutrients or increase the risk of potato blight. Here are three plants that you should avoid planting near sweet potatoes:

1. Squash: Squash plants, such as pumpkins, should not be planted near sweet potatoes. This is because both sweet potatoes and squash plants require ample space to grow and spread their vines. When planted too close to each other, they will compete for space, sunlight, and nutrients in the soil. This competition can lead to stunted growth and reduced yields for both plants. It’s best to give each plant enough space to thrive on its own.

2. Sunflowers: While sunflowers can be a beautiful addition to any garden, they may increase the risk of potato blight when planted near sweet potatoes. Potato blight, also known as late blight, is a fungal disease that affects potatoes and other members of the nightshade family, including sweet potatoes. Sunflowers can create a dense shade that restricts air circulation and creates a humid environment, which is favorable for the development and spread of potato blight. To minimize the risk of blight, it’s best to keep sunflowers at a distance from sweet potatoes.

3. Tomatoes: Another plant to avoid planting near sweet potatoes is tomatoes. Like sweet potatoes, tomatoes belong to the nightshade family and are susceptible to similar diseases, including blight. Planting tomatoes near sweet potatoes can increase the risk of disease transmission between the two plants. Additionally, tomatoes also have high nutrient requirements, and if planted too close, they can compete with sweet potatoes for essential nutrients in the soil. To ensure the health and productivity of both plants, it’s recommended to keep them separated.

When planting sweet potatoes, it is important to be mindful of the plants that you choose to grow nearby. Squash, sunflowers, and tomatoes are three examples of plants that should be avoided due to either competition for space and nutrients or an increased risk of disease transmission. By giving your sweet potatoes the space and conditions they need to thrive, you can maximize their growth and harvest.