Can You Plant Onions by Tomatoes?

Planting vegetables is a great way to ensure that you have fresh and healthy produce right in your backyard. But, what happens when you want to plant onions by tomatoes? Is it a good idea? In this article, we will discuss if you can plant onions near tomatoes and what you need to know before you start your garden project.

The Benefits of Planting Onions by Tomatoes

If you are wondering if you can plant onions by tomatoes, the answer is yes. In fact, planting onions near tomatoes can offer several benefits. For starters, onions are known to repel pests that are attracted to tomatoes. By planting onions near tomatoes, you can reduce the risk of pests like aphids, spider mites and loopers. Additionally, onions have a strong scent that masks the scent of the tomatoes, making it less likely for pests to find them.

What You Need to Know Before Planting Onions by Tomatoes

While planting onions by tomatoes has its benefits, there are a few things to keep in mind. For starters, onions and tomatoes have different growing conditions. Tomatoes require a sunny and warm spot to thrive, while onions prefer cooler and shadier spots. So, make sure to choose a spot that will meet both plants’ requirements.

Additionally, onions and tomatoes have different soil pH levels. Tomatoes prefer slightly acidic soil with a pH level of 6.0-6.8, while onions prefer slightly alkaline soil with a pH level of 6.2-7.0. If your soil pH is not within these ranges, make sure to adjust it accordingly or plant them in separate areas of your garden.

Lastly, onions and tomatoes have different watering requirements. Tomatoes require consistent watering, while onions prefer a drier soil. Make sure to water both plants accordingly and adjust as needed.

Tips for Planting Onions by Tomatoes

If you decide to plant onions by tomatoes, here are a few tips to keep in mind:

Plant the onions first and then add the tomato plants.

Space the plants at least 6 inches apart to avoid competition for nutrients.

When planting, mix in some compost or organic fertilizer to provide both plants with the nutrients they need.

Consider companion planting with other vegetables like basil or marigolds to further prevent pests.

In Conclusion

Planting onions by tomatoes can be a smart way to repel pests and provide your garden with healthy vegetables. However, it’s important to keep in mind the different growing conditions, soil pH levels and watering requirements for each plant. With the proper preparation and care, you can enjoy a bountiful harvest of both onions and tomatoes right in your backyard.