Gardening enthusiasts are always looking for creative ways to make the most of their garden space. One question I always get asked at the allotment is what crops can be grown together i.e. companion plants
Companion planting is a time-honored gardening technique that involves strategically placing plants with complementary growth habits, needs, or pest-repelling properties near each other to enhance overall garden health and productivity. This symbiotic approach not only optimizes space utilization but also promotes biodiversity, improves soil fertility, and reduces the reliance on synthetic pesticides. By understanding the unique relationships between various plant species, gardeners can harness the power of nature to create a flourishing, sustainable, and ecologically responsible vegetable garden.
One such combination that is commonly asked about is whether carrots can grow with tomatoes. The answer to this question is not a straightforward yes or no, as it depends on several factors.
Firstly, it is important to understand the growth habits of both plants. Tomatoes are tall and bushy plants that require plenty of space to grow. They also have deep root systems that can easily compete with other plants for nutrients and water. Carrots, on the other hand, are smaller and more delicate plants that require a more specific environment to grow. They have shallow roots that can easily be disturbed by the roots of other plants.
When it comes to planting tomatoes and carrots together, it is possible to do so, but it is important to consider the following factors:
Soil quality: Both plants have specific soil requirements that must be met to grow successfully. Tomatoes prefer well-draining, fertile soil with a pH between 6.0 and 6.8, while carrots prefer sandy, loamy soil with a pH between 6.0 and 6.8. If the soil is not suitable for both plants, it is unlikely that they will grow well together. It’s worth spending a bit on a PH soil test first, that’s what I always advise my friends.
Spacing: Tomatoes require a lot of space to grow, so it is important to plant them at least 2 to 3 feet apart. Carrots, on the other hand, can be planted closer together, about 1 inch apart; as we saw when planting in large tubs. Planting them too close to each other can result in competition for resources and stunted growth.
Timing: Tomatoes and carrots have different growth rates and planting times. Tomatoes are usually planted in the early spring, while carrots are planted in the late spring or early summer. If both plants are planted simultaneously, the tomatoes are likely to outgrow and overshadow the carrots.
Companion planting: While tomatoes and carrots may not be the best companion plants, other plants can be planted alongside tomatoes to help repel pests and attract beneficial insects. For example, basil, marigolds, and parsley are all good companion plants for tomatoes.
In conclusion, while it is possible to plant carrots and tomatoes together, it requires careful consideration of soil quality, spacing, timing, and companion planting. It is also important to keep in mind that both plants have specific needs and growing conditions, and planting them together may not result in the best yields for either plant. Ultimately, it is up to the gardener to decide whether to plant these two plants together or separately based on their specific gardening goals and preferences.

Brian Sheridan has an allotment in Edgbaston and is a competitive grower. Brian is also a keen photographer and loves cooking. Brian and his wife Mary will also be running a stall at Edgebaston artisan market this year, selling products made from the allotment, including his award-winning relish!